Aplumber charge $50 each visit plus $15 per hour how many hours did the plumber work if he charged a total of $110 create an equation and solve for the number of hours the plumber worked

Plumber's total charge: C(x) = $50 + ($15/hr)x, where x is the # of hours worked.

Setting C(x) = $110, we have $110 = $50 + ($15/hr)x

Subtracting $50 from both sides results in $60 = ($15/hr)x, which comes

out to x = 4. The plumber worked for 4 hours to earn $110.

a

step-by-step explanation:

answer:

a=9

step-by-step explanation: lmk if you need a explanation