Question

A plumber charges a one-time service fee of $20 in addition to his hourly

rate of $25 per hour. If the plumber went to your house to work on your
bathtub and the bill came to $145.00, how many hours did it take him to
complete the job?

Answer 1

Three hundred fifty-five

Answer 2

Answer: 10.5

Explanation:

20+25x=282.50

Subtract 20 on both sides

262.50

Divide each side by 25

You get 10.5