3. A. CED.4 A circular pool of water is shrinking as it drains. The diagram shows the shrinkage. Which is a formula for r?
3
r
A formula for the area, A, of the circular pool is given by the equation
Α = πίr – 3)2.

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.