a$.$ Compute the future value of $$1,000$ compounded annually for $20$ years at $6$ percent.

$($Do not round intermediate calculations and round your answer to $2$ decimal

places, e$.$g$.,32\mathrm{.}16.)$

b$.$ Compute the future value of $$1,000$ compounded annually for $15$ years at $9$ percent.

$($Do not round intermediate calculations and round your answer to $2$ decimal

places, e$.$g$.,32\mathrm{.}16.)$

c$.$ Compute the future value of $$1,000$ compounded annually for $25$ years at $6$ percent.

$($Do not round intermediate calculations and round your answer to $2$ decimal

places, e$.$g$.,32\mathrm{.}16.)$