Question

Heather wants to buy a new refrigerator, but she only has room for one that is 18 ft3 or less. Which set of dimensions represent a refrigerator that Heather can buy?

Answer 1

the answer is a

A) 2 ft. wide x 2.5 ft. long x 3 ft. tall

B) 2 ft. wide x 2.5 ft. long x 4.5 ft. tall

C) 2.5 ft wide x 3 ft. long x 4 ft. tall

D) 2.5 ft. wide x 2 ft. long x 4 ft. tal

Explanation:

2 ft. wide x 2.5 ft. long x 3 ft. tall because 2 x 2.5 x 3 = 15 ft3, which is less than 18 ft3.

Answer 2

As soon as I read the words "which set" in your question, I knew that
there's a list of choices on the sheet where you copied the question
from, but that you didn't copy the list along with the question.

All I can tell you is this:
Find a choice where, when you multiply all three dimensions together,
the product is 18 ft³ or less. That choice is a set of dimensions that
represents a refrigerator that will fit in Heather's kitchen.

(For all I know, there may be more than one suitable choice on the list that
you didn't include with the question, so you'd better check all of them.)