Mathematics, 12.07.2019 10:00 kksavage36

If sarah works at the concession stand for 2 hours, she’ll earn $ 15.50, but if she works for 4 hours, she’ll earn $ 31. find the rate of change ?

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If sarah works at the concession stand for 2 hours, she’ll earn $ 15.50, but if she works for 4 hour...

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