I don't understand this problem I have tried so many times to get it corrected

Question

Jina borrowed 8000 at a rate of 18% , compounded monthly. Assuming she makes no payments, how much will she owe after 4 years

Answer 1

A = amount in t years = P(1 + r/n)^nt, where P = principal = 8000, r = annual interest rate = 0.18, n = number of compoundings per year = 12

So, in 4 years, A = 8000(1 + 0.18/12)¹²⁽⁴⁾ = 8000(1.015)⁴⁸ = $16,347.83