b. How many hours did the first plumber take to do the job if he charged $176?
c. After how many hours will the cost for both plumbers be the same?
A. $148 for the first plumber for 4 hours. $256 for the second plumber for 4 hour
B. He did 5 hours
C. 1 hours because the flat rate plus the hourly fee adding it together will equal 64.