Answer: it would take 22 minutes and 30 seconds
Step-by-step explanation: 450 gallons / 20 gal.per.min
= 22.5

Let's rearrange the terms to convert the equation into slope - intercept form ~
I hope it helps ~
<u>Given:</u>
The given function is 
We need to determine the reflection of f(x) over the x - axis
<u>Reflection over x - axis:</u>
The translation rule to reflect over the x - axis is given by

Thus, applying the rule, the function becomes

Multiplying both sides of the equation by -1, we have;

This can be written as

Hence, the reflection of the function over the x - axis is 
Thus, Option A is the correct answer.