Suppose that when your friend was born, your friend's parents deposited $9000 in an account paying 3.6% interest compounded quarterly. what will the account balance be after 13years?

Where "n" is the number of compounding periods per year.
Total = Principal * ( 1 + rate/n) ^ n*years
Total = 9,000 * (1 + (.036/4))^4 *13
Total = 9,000 * (1.009)^52
Total = 9,000 * 1.59345808583043
Total = 14,341.12