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Mathematics, 25.08.2019 04:20 Emorej22

At joe′s café, one cup of coffee and three doughnuts cost $3.40, and two cups of coffee and two doughnuts cost $4.00
what is the cost of one doughnut? cents.
what is the cost of one cup of coffee? dollars.

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At joe′s café, one cup of coffee and three doughnuts cost $3.40, and two cups of coffee and two doug...

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