Mathematics, 07.07.2019 16:00, smartperraorwhateva

Aplumbing contractor bid the rough-in work for a new three-story office building based an estimate of 850 hours of a journey-level plumber's time on the job. after the job was in progress, the contractor determined that the first floor required 342 hours and the second floor required 329 hours. how many labor hours are left in the estimate to complete the third floor?

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Aplumbing contractor bid the rough-in work for a new three-story office building based an estimate o...