To solve this problem, we must use the Time Value of Money equation.
Future Value = Present Value * (1 + interest rate per month)^number of months
F = 35,000 * (1.02)^6 = 39,415.68
A. She will have to pay $39,415.68 altogether.
To find payment in interest, we must subtract the initial loan of $35,000 from $39,415.68
39,415.68 - 35,000 = 4,415.68
B. She will have to pay $4,415.68 in interest.