2a-1 electrical company charges $45 for a service call. after the first hour (h), there is a $25 hourly charge. materials (m) for the
job are an additional cost. which equation could be used to find the cost (c) to the customer if the job takes a total of h hours?
c=45+25h+m
c=45+25(h + m)
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c=45+ 25( - 1) +m
c=45 + 25(h - 1)

C = 45 + 25(h-1) + m

Step-by-step explanation:

Note: All options are incorrect.

From the given information it is clear that

Fixed cost = $45

Hourly charges after the first hour = $25

Total number of hours = h

Remaining hours after first hour = (h-1)

Materials (m) for the job are an additional cost.

Total cost = Fixed cost + Hourly charges + Additional cost

C = 45 + 25(h-1) + m

Hence, the cost (C) to the customer if the job takes a total of h hours is C = 45 + 25(h-1) + m.