The correct answer is 3 to the 7th power. When multiplying exponents, you are supposed to keep the base (which is 3) and multiply the exponent (5 x 2 = 7). Therefore, the answer is...
Here is what I got:(maybe wrong) 12*8*3 = 288, which is how big the box is. Then, you remove 1.5 inches from the height and get 10.5*8*3, which is 252. Subtract 252 from 288 to get the answer, 36.
