Need help
A circular pool of water is shrinking as it drains. This diagram shows the shrinkage.

A formula for the area, A, of the circular pool is given by the equation A=πr-32.
Which is a formula for r?

r =

Step-by-step explanation:

A = πr-32

using algebraic manipulation to isolate r

A + 32 = πr-32 + 32

A + 32 = πr

(A+32)/π = πr/π

r =

stops on an even number.

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17