need part b and c

please write clearly or use the keyboard

A company deposited $7,500 into an investment fund at the beginning of every quarter for 4 years. It then stopped making deposits into the fund and allowed the investment to grow for 5 more years. The fund was growing at 4.25% compounded monthly. a. What was the accumulated value of the fund at the end of 4 years? Round to the nearest cent b. What was the accumulated value of the fund at the end of 9 years? (x) Round to the nearest cent c. What was the amount of interest earned over the 9-year period? (x) Round to the nearest cent