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1. The plumber’s 2 hour and 26 min plumbing bill​ cost is $73

   What is the plumber’s per minute rate?

   The plumber’s per minute rate is the per half-hour rate divided by 30 minutes since the plumber charges $15 for every 30-minute job

   per-minute rate=$15/30

   per-minute rate=$0.50

   Now, let us convert 2hours and 26 minutes to minutes, in other words, every 1 hour is 60 minutes, the two hours equal 120 minutes plus the 26 minutes gives a total of 146 minutes

   Total minutes=120 min+26 min

   total minutes=146 minutes

   Total plumbing bill cost for 146 minutes is $0.50, the per-minute rate multiplied by the number of minutes the plumber needs to work in this case

   2 hour and 26 min plumbing bill​ cost=146*$0.50

   2 hour and 26 min plumbing bill​ cost=$73

   Find out more about hourly rate on:https://brainly.com/question/4468523

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