Dr. Memon was already thinking of retirement when he graduated university 35 years ago. Since then, he has made deposits into his retirement fund on a quarterly basis in the amount of $600. Memon has just completed his final payment and is at last ready to retire. His retirement fund has earned a 11 percent APR compounded quarterly.

a. How much has Memon accumulated in his retirement account?

b. In addition to his deposits 20 years ago, Memon received an inheritance check for $22,500 from his beloved uncle.

He decided to deposit the entire amount into his retirement fund. What is his current balance in the fund?