Engineering, 04.11.2021 01:00 edjiejwi

Troy must keep track of the amount of refrigerant he uses from a 50-pound cylinder to ensure that accurate records are kept. He used 13 pounds on a system for Ms. Jones and 9 pounds on a system for a commercial client. How many pounds should he have left in the cylinder?

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Troy must keep track of the amount of refrigerant he uses from a 50-pound cylinder to ensure that ac...