A rectangular fish tank has width w inches, length w + 8 inches, and height 18 - w inches. All dimensions are greater than 6 inches. The volume of the tank is 1440 cubic inches. Find the length, width, and height of the fish a. width: 12 in., length: 20 in., height: 6 in. b. width: 10 in., length: 18 in., height: 8 in. C width: 10 in., length: 8 in., height: 18 in. d. width: 12 in., length: 18 in., height: 8 in.