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...have several pages like this ex. where there is no header image shown. I need this to be fixed, so that every page like that, is showing the same top header image similar to this 2 - All my tours is created as products in wordpress Ex. Under the tab "Dagsprogram" I want for each day shown, be able to add a shortcode for the Image Carousel plugin from shortcode ultimate. 3 - On the frontpage I have a seach bar where I need the following translated. Location = Destination Grade = Indkvarteringsniveau Price range = Prisniveau All = Alle 4 - On some of the pages in the top header image there is a text shown (lorem ipsum

...editing software (I do not want to edit HTML Code once job is complete) I will need to edit all text, links and images. 2. I require dropdown tabs like in the following newsletter link. A recreation of the newsletter style will be fine as long as I can edit for our company branding. For those interested in the project pls send me an example if possible of a HTML newsletter where you have a dropdown tab like in the below example.

I need two things: 1. Design to be setup in Campaign Monitor 2. I require dropdown tabs like in the following newsletter link. For those interested in the project pls send me an example of a HTML newsletter where you have a dropdown tab like in the below example.

Jeg skal have lavet min side, så den er så tæt på 100 som muligt her Samtidig skal jeg have lavet SEO på min side - Du SKAL have referencer når du byder på denne opgave.

...correct on our site. - **** Formatting must match the formatting on the manufacturer's site and be responsive on our responsive site. If you don't know how to do this, please don't make a proposal. **** Here is an example product: The description should be placed in our description tab. The other info, from Connections to Warranty should be entered in our Tech Specs tab, while retaining the formatting, including symbols. Note that the content is responsive on the manufacturer site (two columns turn into a single column when viewed on a narrow screen/browser). Need that responsive layout on my site, too. I will provide full URLs to each of the images in the tech specs. I do not want to link to their images. You will not

...task is to implement a simple graphics card (gpu). And also implement the model visualization function. In the file student/, implement the function izg_enqueue - the functionality of the video card implemented by you. In the student/ file, you implement the prepareModel, drawModel_vertexShader, and drawModel_fragmentShader functions. These functions are used to process the loaded model file into the graphics card memory and command buffer. In addition, the folder contains the file student/ - it contains declarations of structures and constants. The project is written on Linux, but is also suitable for Windows in Visual Studio and CMake. The task consists in adding and files Also, program testing is already configured. Deadline 22.05

...Responsibilities Worker’s Rights/Responsibilities Enforcing Standards Reporting Safety Hazards Whistleblower Protections OHSA Violations and Fines Examples This presentation should focus on one company that has been fined in the North Florida area. Include in your slide the cause of the fines and how much they were. You can find this information on OSHA’s official website under the “Enforcement” tab or from Enforcement Cases with Initial Penalties of $40,000 or AboveLinks to an external site.. Your PowerPoint must include a title and reference page. The slide show must automatically progress. Once opened, it should automatically advance to the next slide. The PowerPoint must be presented with an audio recording detailing the information within each slide...

I am in need of a talented web designer to create a captivating and effective landing page for my website. High in design, I need copyright free background gif, vertical slider, anim...a captivating and effective landing page for my website. High in design, I need copyright free background gif, vertical slider, animations. Please add keyword "Creative" in start of your proposal so that I can filter out random bids. UI design should be responsive for all device sizes. All assets should be copyright free and light weighted Animate our logo as a welcome loader until assets are loaded first time. All subsequences website load should be faster. Websites should not have any UI/Performance issues. Initially only work on home page, all other pages will be blank as of now Need to ...

App and Web for same industry institutions(All in one) 1. Users to access all institutions' info on the same and one app 2. Institution to pay fees to be visible on the app par category  Platinum  Diamond  Gold  Silver  Bronze 3. Every week reclassification based on extra payment 4. Clicking on tab , the app will show all institutions' info. Redirection to the institution app 5. Users should also vote using Net Promoters Score(NPS) method 6. The NPS will be sent to all institutions every month 7. The user would win points and MoMo money if he/she recommends the app to other users Condition : recommended users should download/Install/verify/visit at least one institution app/web and recommend new users 8. The institutions will pay an extra amount via the web with a c...

I'm seeking an experienced Android Studio developer who can implement a small project using Jetpack Compose. The app will just have one screen. Specifically I am only interested in developing a tabbar UI component in compose. Image of the UI component will be provided if interested. The TabBar UI component with three tabs. Each tab will serve a different functionality: - Tab 1: A booking system for reserving tickets. Ideal candidates should have prior experience with Android Studio and Jetpack Compose. They should also have strong skills in UI/UX design, Kotlin.

...Pressure: This task has a tight deadline as it's due tomorrow, so you need to be able to work efficiently without compromising quality. My task is: Create a library that implements a stack via a linked list. Only positive numbers in the range of the number of bytes that will be entered when creating the stack will be able to be stored in the stack. The stack will be able to be saved to and loaded from a binary file. The binary will be in the given format - the first byte will be the range of numbers to store, followed by the numbers themselves stored on the stack. Save and load the file according to convert_number_to_bytes(x, count_byte), write_number(file, count_byte, number), convert_bytes_to_number(bytes), precision_number(file). It will be possible to create any number...

Hello, I'm experiencing some issues with my SSL certificate table on my website, particularly with it not loading correctly. So I have a SSL Certificate table that is loaded from tabs. The tab area works without any issues. The problem that I am faced with is that if you take a look at the table directly below the tabbed area you have to use the scroll bar to view all the information in the table. I do not want to use the scroll bar to go across the screen I want it all in view. Please take a look and tell me how to move all the text so that it all in a table that can be viewed without any scrolling. Any questions please ask and I am more than happy to discuss this is if there is anything you don't understand please ask. Please don't quote on the job a...

I need a CodeIgniter developer to help me integrate a static YouTube video popup on the home page of my website. The purpose is to promote brand awareness through the video. Key Requirements: - The video should automatically pop up when the page is loaded. - The video should play without any user controls available, only an autoplay feature. Ideal Skills and Experience: - Strong understanding of CodeIgniter framework - Experience with integrating YouTube videos on websites - Knowledge of JavaScript and CSS for designing the video popup - Ability to implement an autoplay feature without user controls This is a straightforward project that should not take much time for an experienced developer in this field. Please provide examples of similar projects you have worked on.

Looking for an expert React JS developer to enhance my existing design. The job requirements include: * Adding a new feature where a user can click on a "New tab + icon" to generate a new tab. * The new tab should inherit the same default options present in the existing design, such as a default search bar, navigation menu, and homepage button. Ideal for a candidate who has experience with user interface design in React JS, programming user authentication and payment processing, as well as integrating with social media APIs.

fixing the import/export function of cars of vwe platform on The connection with VWE runs via the following portal: manual: (they now use POST option) (logins below) In the "status" tab I can indicate to which URL this link forwards the data. In the "sandbox" tab you can also test the link to your own URL. As you can see, the link pushes all data to This is the script that can be found on the file server that ultimately receives the data and processes it in Wordpress. The Incremental link makes a POST request to this script containing the data. In the script you see 3 types of actions in a switch: Add (new vehicle) Change (vehicle exists, adjustment is being pushed) Delete

...anticipate setting up an account on platform X shortly and would like this integrated as well. Live Chat Functionality: I want to implement a pop-up chat box that allows for instant messaging, enabling me to respond in real-time to visitors. Content Navigation Improvements: Videos: Maintain the tab for video content. Articles: Enhance the articles tab with a dropdown menu for easier navigation, allowing users to select and directly access articles of interest. Blog Section: Introduce a new tab for a blog, which will host regular posts and updates. Homepage Design: The home page should convey a warm, welcoming feeling to visitors. Privacy Policy: Include a link to our privacy policy at the bottom of each page to ensure transparency and compliance. Mobil...

...quest log, changes mart?/ mystery eggs?) Ability to easily subtract and add combat stages Etc. (Both players and mons) with a button press Pre Programmed level moves added Alert and system in place to automatically comply with the base stat relation Evolution reminder Drop down nature selector for pokemon ? System in place for trainers regarding features/edges to make it more seamless Combat tab ( This would include your potions, moves and battle items in one place to hopefully make combat more efficient ?) Easy method for GM to send generated pokemon sheets to the players through a few simple button presses. Ability for Gm (All hail Mattie) to generate pokemon and trainer npcs for simplistic and quick Preset modifiers for training/orders along with preset inputs for ite...

Configure Google analytics events and goals to track the following: - Contact form submission (3 forms on site) - Video Play (Hosted on Vimeo, embedded in site) - Events for key page views, tab clicks, % of scroll -Create a report to determine the goals by UTM parameters and sources -Review any questions we may have on the implementation Website is Wordpress based, forms are made with the WP Bakery form builder. Start your bid with your favorite fruit to confirm you've read the details of this short project.

The project involves: 1. Go to an FTP location and get the last 10 csv files. Input example attached as '' 2. Combine those newest 10 files and map to new structure. Mapping example attached as '' 3. Save new file as 'BooksRunImport YYYY-MM-DD ", place in production folder "C:LakesideBooksClientDownloads" as tab delimited .txt, with an additional copy in folder as a backup. Output example attached as '' I would prefer it be written in NodeJS and compatable with v14.16.1 as I am familiar with how to edit the structure and I have other similar scripts running. I will supply FTP location and login as well as folder locations.

I'm seeking a Wo...Proficiency in PHP and understanding of shortcodes. - Ability to create a safe and efficient solution (IE: it can't be hacked). - Prior experience with customizing WooCommerce functionalities. Notes: I already have existing code that needs to be used but modified to work with the add to cart functions. What I believe is happening at the moment is, the shortcode logic is executing but AFTER the page has loaded which results in the add to cart logic failing. For your reference, the shortcode is called "prs_change_registration_transact_sc". The code is attached for your reference. I can provide access to a staging website if need be, but a professional WordPress and WooCommerce programmer should be able to see the issue immediately and help me...

I'm looking for an adept Javascript developer who is proficient with React to create a function for my custom web app. Here's what you'll be working on: - DOM Manipulation: Your main task will be form manipulation. The ability to handle dynamic content that may be loaded post initial load is crucial. - Autocomplete Function: For this role, prior experience with form manipulation, particularly in React, is essential. Knowledge in working with server APIs for autocompletion is also valuable. Your creativity and problem-solving skills will certainly be beneficial in addressing the dynamic content challenge.

...details of the workshop) - The customer has the option of clicking on “Order placed” for a workshop “Workshop area” There are 3 tabs in the partner area: - New requests tab: - All new (anonymized) requests can be seen here. - The workshop has the option to click on “Reject request” (with a short explanation) or on “Send offer”. - With “Send offer” a price must be entered, some checkboxes and a text field) - The request is then moved to the “Processed requests” tab - Tab “Processed requests” - Here you have the option to click on “Receive order”. The request is then moved to the “Orders” tab - Orders” tab -Here you ...

I will provide four sheets containing monthly AWS expenses, along with an output report for the last month. I need someone to update them for April. This involves updating the month, dollar amounts, percentages, and budget numbers. Ensure that the budget corresponds to April (specified in the budget tab), all percentages are accurate, and the line chart reflects the current month's expenses.

I am creating a student enrolment management system for learning purpose and need guidance of someone who knows about salesforce and have made something like it earlier. It's a very basic project, no experience required, It might not required more than 2 hours of time. If you know about object creation, tabs, profile management, tab and field security, you are welcome to apply for this project.

I have a baseline construction schedule built already; it has around 1000 activities, the schedule is cost & resource loaded. I will provide the update in excel (actual start, actual finish, actual cost), the monthly activities that needed to be updated (actual date & Cost) around 100 activities every month. Please note sometimes I need to provide you comments on the schedule update, so you need to fix the comments. I need you to update the start/finish date and insert the actual cost monthly (once every month). Plus, prepare small narrative report including some P6 PdF. I have the P6 layouts I will share with you. I have the report and layout built in already and I will share it with you. Finally, send me XER file, and Narrative report every month. It is very important y...

I am in need of an Excel relational database. The database should have the functionality to enter values automatically from an attached worksheet. The entry of these values will be based on specific criteria, more specifically, column values...attached worksheet. The entry of these values will be based on specific criteria, more specifically, column values. Required Skills and Experience: - Strong knowledge and proficiency in Excel - Experience in database creation, management, and optimization - Understanding of data entry and data analysis - Proven experience in creating reporting capabilities within Excel. Using the "Reference data" tab, when the value in Column B is entered in the "Example worksheet" the corresponding values should automatically populate ...

I'm in need of a WordPress developer who can transform my current website, adding fresh content and features to make it more engaging and efficient. Key Features and Improvements: - Integrate a 'Products' tab with a range of 10-50 items and their respective prices - Develop a product package selection system that includes a sign-up form - Revamp the existing blog feature to make it more appealing and user-friendly - Provide suggestions and implement changes to enhance the overall aesthetic appeal of the site, with a preference for a 'Creative and Vibrant' style Ideal Skills and Experience: - Proficient in WordPress development - Extensive experience in e-commerce integration - Strong grasp of UX/UI design principles - Ability to create a visually appealin...

I want to edit video we shot of improvised comedy in a NYC Yellow cab! We need an editor who is quick and creative and can edit our 15 minutes down to a tight and funny 3-5 minutes. You would be working at my apartment in Forest Hills, Queens on my iMac. My iMac is running the latest OS, with the latest Final Cut Pro, and is loaded with RAM! I'd like to keep our sessions at 2-3 hours. Interested? What is your availability? The key editing areas are: - Color correction: The video needs professional color grading to enhance the visual appeal and maintain consistency throughout the film. - Sound enhancement: Audio is a critical component of the film, so I need someone who can improve sound quality, adjust levels, and ensure the audio complements the visuals. - Visual effects...

...Statement with filled out excel based on data given We need an expert Freelancer to enter basic financials data to attached financial Projection in Excel and produce a profit loss statement based on this Excel attached and the data of company projected Revenues and expenses Simple if you have done it before You will send us back the filled out excel with sheet tabs including the Financial Planning Tab and Profit Loss. Budget is $200 - $300 +/- Very Simple just summarize and detail the data correctly any questions or data you need for this ( not given in attachments in zip ) we will give you You need to put all Hungarian Forint Currency Do the conversion from Euro as shown in the renew breakdown This is not just putting data but understanding all financial Projection and pro...

I'm seeking an experienced developer to create a Chrome extension that logs specific web data. This browser extension is meant to automatically save all resources loaded by the browser, capturing the following: - URLs of resources - File types of resources - Sizes of resources - Time of access I expect this project to be completed as soon as possible. The ideal candidate will have a solid background in extension development, proficiency in JavaScript, HTML, and CSS, and a comprehensive understanding of Chrome's APIs. Familiarity with user interface design for added usability would be advantageous.

To ensure ongoing productivity within my operations, I'm in need of a talented Python programmer who can masterfully create a script specifically for a Topaz Signatu...Topaz Signature Pads. - Capture signatures from the Topaz T-LKB755SE-BHSB-R SignatureGem LCD 4x3. Simple gui with 2 buttons, start siging and save image. Image then shown in gui and saved in database. This are the available SDKs /software combine what you need i am on a windows pc with the topaz in front. Python is main but load or do what you need. The captured signatures should be saved in a format that's optimal for database storage and for use in official forms. The preferred database management system for storing these signatures is SQLite3.

It's a restaurant food delivery app. Back-end admin in laravel and app in flutter. The following issues need to fix: 1. Increase notification volume in admin and notification sound is not happening once admin works in another tab in his system. 2. Invoice printout is not legible. this should be corrected. 3. Create Kitchen token. There will be only 3 fields, Customer name, item ordered & quantity. All this inputs can be taken from invoice.

...a 1.20.1 equivalent (except Pixelmongenerations 1.12 v2.6.7 as there is no 1.20 version) and add the new Pixelmon Generations mod and its dependencies including: architectury 9.1.12 botarium forge 1.20 v2.3.1 cobblemon forge 1.20 v1.4.1 Generations-Core 2.1.1 Beta Kotlin 4.10.0 Returning a complete world download would mean one without missing blocks in a state to be played for the currently loaded chunks in the Overworld, Nether and end Dimensions. This will likely include development of an additional sidemod to bridge the blocks missing that were removed by BiomesOPleanty. This sidemod is free for you to keep and repackage in any capacity, but we do ask that the contents of the world download including builds and information be strictly confidential. In addition to financial...

I'm on the hunt for a talented web designer to help me build an artistic and unique single-page website for my company. and catalog as well - Functionality: The website should be embedded with smooth scrolling functionality for easy navigation. - Purpose: The website's primary purpose is to provide information about the company and Products - Ability to implement smooth scrolling and tab navigation features. - Creative flair and attention to detail to ensure the website reflects the essence of my company. - Design: I prefer a design that is artistic and unique, not your average corporate webpage. - Additional Features: The website should have in-site search function and fully integrate with our company's social media pages. - Experience in catalog design, including la...

...enabling users to execute item for item trades. - **Highly Customized with Full Control and Analytics**: The level of customization needed is very high. I expect the bot to have user controls and detailed analytics for optimal performance. Please view our two resources provided which is what i could find. We need a developer that can assist us with designing, developing, improving and deploying the website to our server after testing to see if it works. Please have a look at the two references and go through it so we can discuss options to improve it and update it. Competitor website - Ideal Skills and Experience: - Proficient in Node.Js and experience

I recently moved my WordPress website to a new host using a migration plugin. However, I am encountering mixed content issues post-migration which is causing some browsers to block the site due to security concerns. I need this fixed urgently. Key Requirements: - Resolve mixed content issue - Ensure all resources are loaded securely - Ensure site remains fully functional post-fix Experience Needed: - Proven experience in WordPress website migrations and post-migration issues - Strong knowledge of security protocols and HTTPS implementation - Ability to troubleshoot mixed content issues efficiently The task is urgent so please only apply if you can start immediately and deliver in a timely manner.

I'm looking for an experienced Android developer to create a custom application. The key features required are: - We need to have 2 split screen , - One screen will always have my app running - Second screen will have some 4 builtin apps Youtube, maps, Chrome, Spoify - At any point our custom app will be running always and shows some data - In the other screen user can choose between what app...- One screen will always have my app running - Second screen will have some 4 builtin apps Youtube, maps, Chrome, Spoify - At any point our custom app will be running always and shows some data - In the other screen user can choose between what app he wants (max only 4-5 apps which we choose should be available) - It should be in Kiosk mode (where user should not be able to go back and power o...

I'm looking for a talented developer to create a PHP-based webpage that generates a unique 10-digit alphanumeric code on every load. The generated codes should never replicate, regardless of how many times the page is loaded. Key Requirements: - The 10-digit codes should be a mix of letters (both uppercase and lowercase) and numbers. - The webpage should be developed using PHP. Key Considerations: - The solution you provide should ensure that the codes never repeat. Your approach in achieving this, whether it be by real-time checking, database storage, or other methods is up to you. - There is no specific requirement for the storage of the generated codes, as long as the system ensures their uniqueness. Ideal Skills: - Proficiency in PHP and web development. - Strong unders...

Search engines need to be implemented at 3 cpts, these results must be loaded via Ajax on the same page, and with pagination. 2 of the forms have nested fields, that is, one option is chosen from a list and the other drop-down menu is filled automatically. I send screenshots in the document

...the "ORDERMENTUM" tab in the google sheet. See sample production report attached () - this is for the items required by customers on Saturday May 4th. This data is not available to access without exporting it to a csv file. For retail orders we use Shopify but use two apps to provide the data to our production team so that they know when the customer has selected to pick up their order - Zapiet Pick + Delivery to assign an order pickup/delivery date (it does so by adding date tags to orders) and Report Pundit to organise this information into production reports. See an example Report Pundit export for Sunday May 5th (Production - Daily ) This data needs to populate into the relevant date column of the "SHOPIFY" tab in the google sheet

As an active user of the Odoo 17 platform, I am looking to augment my current interface further. Key Tasks: - Addition of 'Tickets', 'Tasks', and 'Subscription' buttons at the top of the existing Contacts form. - Insertion of a new tab to summarise all tickets connected to a contact. - Modification of Arabic fonts to a Cairo font with Right-To-Left (RTL) layout. The ideal freelancer for this task should: - Have extensive experience in modifying Odoo interfaces, particularly Odoo 17. - Be capable of swiftly yet carefully carrying out these modifications, as I require them within a day. - Showcase pertinent past work in their application to demonstrate the relevant skills and experience.

Wordpress Single product page - product tab section - Need to change tab title and tab content. Note- this was done long back by the person who designed the website. Probably he used some snippets to change the tab name. The present tabs are - Description Additional Information - ( now named as - "size guide" ) reviews Freelancer needs to change the tab content of "size guide" and explain, from where content can be uploaded for the tab - "size guide"

More details: We are...database. This isis for your reference : We operate a LPG gas agency, where customers exchange their empty cylinders for filled ones. However, sometimes we give out filled cylinders before receiving the empty ones back, resulting in two separate inventories: one for filled cylinders from our dealer, and another for empty cylinders returned by customers. To streamline this process, I propose adding a tab or checkbox in our Point of Sale (POS) system when selling the product, prompting the staff to confirm whether the empty cylinder has been received. If yes, it should update the Empty Cylinder stock; if no, it should not. Database management, Creating Two New database and a button in a dashboard., Need someone Who understand complex Backend Architecture in ph...

I need an expert WordPress programmer who can create custom functions for my website. Currently, I need to fix two things: I have a list of offers in the hotel tab of each individual hotel, and I want to open them using a custom button rather than the native link of the accordion. If I post an offer for a hotel, that offer should only be visible for that specific hotel. However, at the moment, it is shown in all hotels, even though I select the hotel to associate these offers with from a select box in the control panel during the posting phase. This involves creating custom queries for WordPress. I usually use PHP/MySQL, but for this new version of the site, I am using WordPress. The total budget is 15 USD it's not a demanding job for an expert. I am attaching images to cla...

I'm looking for a talented developer to enhance an existing open-source project on GitHub. The project is a Proctoring AI located at this link: The enhancements I need revolve around improving the project's accuracy, implementing real-time monitoring, and creating a more user-friendly interface. Key Requirements: - **Improved Accuracy**: The project should be able to deliver even more precise proctoring results without compromising on performance. - **Real-time Monitoring**: A key aspect of the enhancements should focus on implementing real-time monitoring, which will allow for more effective proctoring during exams or similar activities. - **User-friendly Interface**: The revamped project should have an intuitive and engaging

...script that will effectively integrate a Topaz Signature Pad. The following degree of functionality should be prioritized: - Capture signatures from the Topaz T-LKB755SE-BHSB-R SignatureGem LCD 4x3. This are the available SDKs /software combaine what you need i am on a windows pc with the topaz in front. Python is main but load or do what you need. The captured signatures should be saved in a format that's optimal for database storage and for use in official forms. The preferred database management system for storing these signatures is SQLite3. The ideal freelancer for this role should have: - Extensive experience in Python programming. - Developed skill with hardware integration (preferably with Topaz products)

...extension should be able to pop up a new topic for discussion on the screen that all viewers and the streamer can see and also prompts us in chat. - Configurability: I need the ability to set the frequency at which these topics are displayed. It should be configurable, for example, every 5 minutes, 10 minutes, or 15 minutes. I also need to have the ability to custom create topics. - Topics that can be loaded (Default - using top conversation starters that I can provide) or custom added by chat (Via Bits) or streamer/mods. - Integrated sound alert for this. The ideal candidate for this project should have: - Proficiency in Twitch Extension development. - Experience with real-time data integration. - Strong understanding of UI/UX design principles for overlays. - Ability to cre...

I need an Excel budget tracker developed, with specific focus on tracking and calculating expenses related to my business. - The tool should enable me to manually enter expenses and automatically sort these costs into categories. - The main category of interest is 'Commercial Expenses', so having a well-de...this is important. - I additionally require a feature for budget calculation, providing an easy-to-understand analysis of financial outgoing compared to overall budget. Ideal freelancers for the job would be those proficient in Excel and financial analytics. Experience in developing similar budget tracking tools would be a valuable addition. I have a base of what I need. I need the budget data tab updated with the new budget as well as the dashboard has some areas t...

...contact details of the workshop) - The customer has the option of clicking on “Order placed” for a workshop “Workshop area” There are 3 tabs in the partner area: - New requests tab: - All new (anonymized) requests can be seen here. - The workshop has the option to click on “Reject request” (with a short explanation) or on “Send offer”. - With “Send offer” a price must be entered, some checkboxes and a text field) - The request is then moved to the “Processed requests” tab - Tab “Processed requests” - Here you have the option to click on “Receive order”. The request is then moved to the “Orders” tab - Orders” tab -Here you will find ...

I'm on the lookout for an experienced tutor specializing in Advanced Placement (AP) Precalculus and AP Calculus. The lessons will be conducted online, so proficiency with digital teaching tools is essential. Here's what I ideally need: - A thorough understanding of both AP Precalculus and AP Calculus - Pen-tab - Experience with US students If this is you, please bid with a sample tutoring video in English language on any topic of Calculus!