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Mathematics, 11.03.2021 05:00 saladdressing1425

Mary spent a total of $293.37 for a party. She spent $200.67 on food, plus an additional $30.90 for each hour of the party. How long was the party?

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Mary spent a total of $293.37 for a party. She spent $200.67 on food, plus an additional $30.90 for...
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