The point shown is marked at (36,82), meaning that the panda is 36 months old and weighs 82 kilograms. To plot the next point, just go up from 110 on the graph to 90 and mark a point. (Sorry I tried to put an image but it was extremly blurry.)
Well to get the area of 288 the dimensions would be a couple of things but 16 ft by 18 ft seems to work, so the dimensions increase by 4 ft on each side.