Multiple Choice Question

A plumber charges $50 for every house call and an additional $70 for each hour of work. For one house call yesterday, the plumber earned $435.

Which equation can be solved to find the number of hours the plumber worked on the house call?

A. 435 = 70x + 50
B. 435 = (50 + 70)x
C. 435 = (x+70) +50
D. 435 = 50x +70

1 answer

A. 435 = 70x + 50

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