2) Al the plumber charges $80 per visit, plus 540 per hour. Bob the plumber charges 565 per hour, with no additional fee for a visit.
From a monetary standpoint, which of these is the correct option for a family who needs a plumber?
A)
hiring Al if they expect the job to take four hours
B)
hiring Bob if they expect the job to take six hours
c)
hiring Al if they expect the job to take three hours
D)
hiring Al if they expect the job to take one hour or less