Question

A plumber comes to your house to repair a leak.

The plumber charges $35 an hour plus a one-time
service fee. You paid the plumber $160 for 3
hours of labor last week.
Write an equation in slope-intercept form for the
cost, C, after h hours of service.
How much is the one-time service fee?
How much will the plumber charge for 5 hours of
labor?

Answer 1

275

Explanation:

35*3 = 105

160-105= 55 = 1 time fee = f

C = 35h + 55

C = 35 * 5 + 55

C = 275

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