John called a plumber to fix a leak in his bathroom. The plumber charged $30 to come to the house and $25 an hour while fixing the leak. If the final bill was $105. how many hours was the plumber at John's house?

We know that $30 of the $105 bill was just to come to the house, leaving $75 of the bill due to the hours spent.  Since the rate per hour is $25/hour, that means 75/25 = 3 hours were spent at the house.

Step-by-step explanation:

30 subtracted from 105 leaves u with 75 so divide that with 25 & he took abt 3 hrs

idk man good luck man