Suppose the height of a box is h feet.

(a) If the width of the box is five feet more than three times its height, then its width can be expressed as.

(b) If the length of the box is four feet less than two times its height, then its length can be expressed as

(c) The area of the base of the box is the product of its width and length.

i. The area can be expressed as? (ia) which can be expanded t0