Mathematics, 16.12.2020 01:00 redrhino27501

Mary, Amy, and Kim babysit. Last week, Kim earned 7.50 dollars more than Mary, and Amy earned twice as much as Kim. If Mary earned 12.80 dollars, how much did Amy and Kim earn

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Mary, Amy, and Kim babysit. Last week, Kim earned 7.50 dollars more than Mary, and Amy earned twice...

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