Mathematics, 26.05.2021 20:40 connorhoran05

Regina owns a book store. She sold 87, 94, 91, and 84 books on the first 4 days of this week. Regina wants to have a mean of 90 books sold after 5 days NEED IT FAST

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Regina owns a book store. She sold 87, 94, 91, and 84 books on the first 4 days of this week. Regina...