Question

An electrician charges $75 per hour on top of a set fee of $50 for every house call. Write an equation for C, in terms of t representing the total cost of the electrician's services if the electrician spends tt hours at the house working.

Answer 1

Explanation:

C(t) = 75t + 50

the total Costs depend on the number of working hours at the house.

it is $75 for every hour plus $50 flat fee just for coming, so that the costs are at least $50, even if there are 0 hours work on site.