Answer :
<em>3,000 Gallons</em>
Step-by-step explanation :
Using the formula the question gave :
<u><em>g = -200m + 250,000</em></u>
-200 × 20 ( minutes ) + 250,000 = 246,000
-200 × 5 ( minutes ) + 250,000 = 249,000
How much more water remains after 5 minutes than
<em>after 20 minutes</em> ?
249,000 - 246,000 = 3,000
Hopefully this helps ! Should be pretty easy if you have a calculator, next time break down the question :)