The design of a digital box camera maximizes the volume while keeping the sum of the dimensions at 7 inches. If the length must be 1.6 times the​ height, what should each dimension​ be?

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