1. What payment, made at the end of each month for 13 years, will accumulate to $10,200 at 7% compounded annually?

2. In what period of time could you pay back a loan of $3000 by making quarterly payments of $320 if interest is 8.7% compounded monthly? State your answer in years and months (from 0 to 11 months).

3. Victoria saved $420 every six months for five years. What nominal rate of interest compounded annually is earned if the savings account amounts to $5100 in five years?