Nadia has grades of 91,73, and 80 on 3 math tests. What grade must she earn on the next test…

July 15, 2020/in /by ACE CIPD

Nadia has grades of 91,73, and 80 on 3 math tests. What grade must she earn on the next test to have an average of exactly 85 for all 4 tests?

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