Respuesta :
Answer: the correct option is (C) 100 + 50h.
Step-by-step explanation: Given that a plumber charges a flat rate of $100 and $50 per hour, h, for a job.
We are to select the expression that represents the total cost for the job.
According to the given information, we have
the charge of the plumber in h hours is given by
[tex]50\times h=50h.[/tex]
Since there is a flat rate of $100, so the total cost for the job will be
[tex]C=100+50h.[/tex]
Thus, the required total cost for the job is [tex]100+50h.[/tex]
Option (C) is CORRECT.