Find the present value of $$2,800$ under each of the following rates and periods: $($Round intermediate cal places, e$.$g$.2\mathrm{.}512512$ and round final answer to $2$ decimal places, e$.$g$.2,515\mathrm{.}25.)$

a$.9\mathrm{.}0$ percent compounded monthly for five years.

Present value $

b$.6\mathrm{.}6$ percent compounded quarterly for eight years.

Present value

$

c$.4\mathrm{.}38$ percent compounded daily for four years.

Presentvalue $