Question

an plumber charges a flat rate of $25 for a job and $15 for each hour that he works on the job.how many hours did the plumber work on a job if the total charge was $85

Answer 1

Answer: 3 hours

Step-by-step explanation:

If you add up 25+15=40 if you add up 40+15=55, 55+15=70, 70+15=85