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Algebra 14 Online
OpenStudy (anonymous):

DG's Plumbing and Heating charges $50 plus $65 per hour for emergency service. Bill remembers being billed just over $400 for an emergency call. How long to the nearest hour was the plumber at Bill's house? _____ hours

OpenStudy (texaschic101):

50 + 65x = 400 Now just solve for x, the number of hours

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