The drain in your 45-gallon bathtub is partially clogged, but you need to take a shower. the showerhead had a flow rate of 2.25 gallons per minute, but the bathtub only drains at a rate of -0.5 gallons per minute. what is the longest shower you can take?

  25 minutes 42 seconds

Step-by-step explanation:

The tub will fill at the rate of ...

  2.25 gal/min - 0.50 gal/min = 1.75 gal/min

It will take ...

  45 gal/(1.75 gal/min) ≈ 25.714 min

for the tub to fill.

You can shower for about 25 minutes 42 seconds.

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart