You have just received a windfall from an investment you made in a friend's business. She will be paying you $$10,000$ at the end of this year, $$20,000$ at the end of next year, and $$30,000$ at the end of the year after that $($three years from today$).$ The interest rate is $3\mathrm{.}5\%$ 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$)?$

a$.$ What is the present value of your windfall?

The present value of your windfall is $ $($Round to the nearest dollar.$)$

b$.$ What is the future value of your windfall in three years $($on the date of the last payment$)?$

The future value of your windfall in three years is $ $($Round to the nearest dollar.$)$