Mathematics, 11.10.2019 00:50 plshelpomg
Skylar's grades on four math tests are 85, 78, 77, and 69. what does skylar need to score on the next test in order to have a mean score of 80?
a)83
b)90
c)91
Answers: 2
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Skylar's grades on four math tests are 85, 78, 77, and 69. what does skylar need to score on the nex...
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