As part of your job as a quality-control inspector in a factory you can check 16 parts in 3 minutes. how long will it take you to check 80 parts?

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

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