You need to add the surface areas up together
You divide them, so 1,125 divided by 15=25. So your Answer is 75 students are on each bus.
Z^5/8
You can tell this because exponents get added together when multiplying and the fact that the fraction goes down by a multiple of 1/8.
It doesn't give any answers? I think the first one is 14 the second one is -4 and the third one is 10