You have just received a windfall from an investment you made in a friend's business. She will be paying you $19,524 at the end of this year, $39,048 at the end of next year, and $58,572 at the end of the year after that three years from today). The interest rate is 14.1% per year. 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)