A company deposited $13,000 into an investment fund at the beginning of every quarter for 6 years. It then stopped making deposits into the fund and allowed the investment to grow for 3 more years. The fund was growing at 4.25% compounded monthly.

a. What was the accumulated value of the fund at the end of 6 years ?

Round to the nearest cent

b. What was the accumulated value of the fund at the end of 9 years ?

Round to the nearest cent

c. What was the amount of interest earned over the 9-year period?

Round to the nearest cent