Autocad redrawing to scale

1.) redraw the attached rough drawing to scale. Dimensions as shown on the drawing apart from the small square (85*85) and the rectangle that is next to it. (145*85). All dimensions in millimeters. 2.) tidy up a autocad drawing and correct 2 items for scale. Tidy up the 4? items labeled PL1, 2 and 3 are equally spaced and PL2 is in the middle of the wall. Also PL4 in the middle of it's wall. Scale the square in the store so it is 650*650