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Mathematics, 17.03.2020 20:35 kevin2920

Ella’s test grades in her history class are 89, 94, 82, 84, and 98. What score must Ella make on her next test to have a mean test score of 90?

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Ella’s test grades in her history class are 89, 94, 82, 84, and 98. What score must Ella make on her...
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