Question

A plumber says it will cost at least $640 for parts and labor to repair a sink. The cost of the parts is $123 and the plumber charges $110 per hour for labor. How many hours is he planning to work? Write an inequality and solve. Write your answer in a sentence.

Answer 1

40 + 75x = 125 + 25x

Explanation:

t takes 5 hours of work for each to cost the same.