Mathematics, 18.07.2019 10:00 rockinrosh12

The test scores for 8 students taking and algebra 1 test are as follows: 56, 92, 78, 64, 85, 83, 91, 77. what would the 9th student have to get on their test in order for the mean test score to be 78

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The test scores for 8 students taking and algebra 1 test are as follows: 56, 92, 78, 64, 85, 83, 91...

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