Question

A pet shop had 8 identical fish tanks in the shape of rectangular prisms. The width and height of each tank was (x – 7) inches and the length was 8 inches more than its width. The expression below shows the maximum amount of water which all the tanks together can hold.

8(x + 1)(x - 7)^2

What does the factor (x + 1)(x – 7)^2 represent?

A. The volume of each tank.

B. The volume of all the tanks.

C. The surface area of each tank.

D. The total surface area of all the tanks.

Answer 1

Any ideas?