Aboy swims downstream 0.9 miles in the same amount of time that he can swim 0.6 miles upstream. if the rate of the current is 1.5 mph, how fast can he swim in still water?

A)a square brown tarp has a square green patch green in the corner the side length of the tarp is (x + 8) and the side length of the patch is x what is the area of the brown part of the tarpb)a square red placemat has a gold square in the corner the side length of the gold square is (x - 2) inches with the width of the red region is 4 in what is the area of the red part of the placemat