2 years ago

10. Mac the plumber charges $80 for a house call plus

Mathematics

1 answer:

sukhopar [10]2 years ago

5 0

Answer:

4 hours

Step-by-step explanation:

55h = 80 + 35h

55h - 35h = 80 + 35h - 35h

20h = 80

20h/20 = 80/20

h = 4

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