please do A-B

You have just received a windlall from an investment you made in a friend's business. She wal be paying you $40,622 at the end of this ynar, $81,044 at the end of next year, and $121,586 at the end of the year after that (three years from foday). The interest rate is 12.6% per yoar. a. What is the present value of your windfall? b. What is the future value of your windfall in three years (on the date of the last payment)