a$.$ $$1,600$ a year for $9$ years discounted back to the present at $10$ percent.

b$.$ $$60$ a year for $4$ years discounted back to the present at $7$ percent.

c$.$ $$290$ a year for $12$ years discounted back to the present at $12$ percent.

d$.$ $$580$ a year for $6$ years discounted back to the present at $6$ percent.

a$.$ What is the present value of $$1,600$ a year for $9$ years discounted back to the present at $10$ percent?

$ $($Round to the nearest cent.$)$

b$.$ What is the present value of $$60$ a year for $4$ years discounted back to the present at $7$ percent?

$ $($Round to the nearest cent.$)$

c$.$ What is the present value of $$290$ a year for $12$ years discounted back to the present at $12$ percent?

$$,($Round to the nearest cent.$)$

d$.$ What is the present value of $$580$ a year for $6$ years discounted back to the present at $6$ percent?

$$,($Round to the nearest cent.$)$