32,000 in. of space (if I'm correct: you use the formula for volume of a square, you cube the sides or multiply it 3 times, and the side lengths are 20 so you will get 8,000 and then you add that to the sum you find by the formula of volume of a rectangle, length times width times height, which gives you 24,000 then you add the 2 totals together which gives you your final answer)
