D also because it already states D in the question - 6 1/2 is D
Explanation:
So to get an area of a cube you need to do width*height*length. Aka that also means that it can be base area time height. Thats because base area is width times height. So we know base area and we know volume but we dont know 1 variable that being height, but we can solve for it. 45 1/2 divided by 6 1/2 will get you height
