Solve Area Problem $\$ 70$ Per $100 \mathrm{ft}^{2}$ (Use 314 For Problem

Multiple Choice

Solve area problem.
-Find the cost to asphalt a circular racetrack if asphalt costs $\$ 70$ per $100 \mathrm{ft}^{2}$ . (Use 3.14 for $\pi$ . Round to the nearest dollar.)
$\begin{aligned}& \mathrm{r}=85 \mathrm{ft} \\& \mathrm{R}=140 \mathrm{ft}\end{aligned}$

(Use 3.14 for $\pi$ .)

A) $\$ 27,200$
B) $\$ 43,081$
C) $\$ 15,881$
D) $\$ 26,596$