Find the following values assuming a regular, or ordinary annuity $($Note: provide answer in full dollars$/$cents form, e$.$g$.,$ $$1,234\mathrm{.}56$ or $$123\mathrm{.}45)$:

a$.$ The present value of $$400$ per year for ten years at $10$ percent

$.$

b$.$ The future value of $$400$ per year for ten years at $10$ percent

$.$

c$.$ The present value of $$200$ per year for five years at $5$ percent

$.$

d$.$ The future value of $$200$ per year for five years at $5$ percent

$.$