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Mathematics, 28.04.2021 20:10 wcwheelsp26w7n
On three examinations, mark scores 91, 82, and 76. what scores does mark need on 4th examination to raise his average to 85?
a. 92
b. 91
c. 93
d. 90
e. 85
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On three examinations, mark scores 91, 82, and 76. what scores does mark need on 4th examination to...
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