3^-2 * 3^-5
(-4)^5 / (-4)^8
(2^5 / 2^8)^3 * 2^-3

That’d be 9 years or something

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.