You would do $5.67 divided by three. one pen is $1.89
Multiplying -15 by 60 yields -900, so the amount of water in the pool changes by -900 gallons in one hour.
It's going to be going up. That means the answer is b.
Hope this helped☺☺
I believe it would be 12 because 9 min divided by .75 a rotation gets 12 rotations
1 hr plus 20 minutes
Then that answer divided by 15
Then that answer multiply by 3/4
