Ms. Williamson woke up one morning to find that her water heater had sprung a leak. She
called two different plumbers to get their rates. The first plumber charges sixty-four dollars
just to walk in the door plus twenty-four dollars an hour. The second plumber charges a
flat fifty-six dollars an hour. After how many hours will the cost for both plumbers be the
same? Explain which plumber Ms. Williamson should use based on the number of hours she
expects the repair to take.