Audrey Sinquefield $,\frac{06}{22}\frac{?}{25}10$:$41$ PM

Completed: $5$ of $22$

Ny score: $5/22$ pts $(22\mathrm{.}73\%)$

A circle has an initial radius of $50$ ft when the radius begins decreasing at the rate of $4f\frac{t}{m}in.$ What is the rate in the change of area at the instant that the radius is $14$ ft $?$

The rate of change of the area is $$

$($Type an exact answer in terms of x $)$