Mathematics, 27.01.2021 04:40 sofo24

Mary spent a total of $322.78 for a party. She spent $200.66 on food, plus an additional $30.53 for each hour of the party. How long was the party?

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Mary spent a total of $322.78 for a party. She spent $200.66 on food, plus an additional $30.53 for...