After running a race, Azaeleah is tracking how quickly her heart rate decreases. If her heart rate at the end of the race is 180 beats per minute, and she finds that it decreases by 4 beats per minute every 3 minutes after the end of the race, which of the functions below represents her heart rate based on minutes after the race?

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)

idk

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step-by-step explanation: