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12 July, 23:48

Pauline billed her neighbor a total of $100 for the plumbing work she did. The cost of the materials was $12 and she Charged $16 per hour for her service. How many hours did she work?

9.7 hours

5.5 hours

7.0 hours

2.6 hours

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Answers (1)
  1. 13 July, 00:19
    0
    The answer is 5.5 hours

    100 - 12 = 88

    88 divided by 16 = 5.5
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