What sum of money amounts to R$ 8700 in 3years at the rate of 24% per annum?​

hi there!

question 1 answer: p/q can be terminating when q = 5^m * 2^n

question 2 answer: -1 and -1

question 3 answer: -4

question 4 answer: 5/12

hope this : )

i think the answer would be c