Which expression could be used to find the volume of the prism shown below? 10 4 12 (4x12)x10 (4+12)x10 (10 +12)x12 (10+12)x4

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