Answer:
First option: 35h = 61.25
Explanation:
Equations
Knowing the plumbing company charges $35 per hour for labor, and being h the number of hours, then the total charge can be modeled by the equation:
C=35h
We know the total charge for labor on a job is C=$61.25, then:
35h = 61.25
Is the equation to be solved to find the number of hours spent on the job