U didn't mess up....
V = pi * r^2 * h....divide both sides by (pi)r^2
V / (pi)r^2 = h
Question: Simplify

.
First off, you <em>never</em> want square roots on the bottom of a fraction, so let's multiply both sides by

to get rid of it. All we have to do from there is simplify!
I will answer if u post the ?s in a coment
The correct answer is -3.6. Hope this helps!!
Answer:

Step-by-step explanation:
The bill = $190
Less flat fee = 25
Work done = $165
