48 gallons... since the first shower head gives 9 gallons per minute you multiply 9 by 8 then you use the equation and multiply 3 by 8 then you subtract the two shower heads
One and a half gallons. (1.5 gallons)
Answer:
<h2>
7.2</h2>
option B is the right option.
Step-by-step explanation:
<h3>
Using leg rule</h3>

Plug the values:

Apply cross product property

Calculate the product

divide both sides of the equation by 20

Calculate:

hope this helps..
Good luck...