Question

A plumber charges a flat rate of $100 and $50 per hour, h, for a job.

Answer 1

It is either  D or B..........

Answer 2

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

$50\times h=50h.$

Since there is a flat rate of $100, so the total cost for the job will be

$C=100+50h.$

Thus, the required total cost for the job is $100+50h.$

Option (C) is CORRECT.