Nomar has earned scores of 73,85,91, and 82 on the first four of five math test for the grading period. he would like to finish the grading period with a test average of atleast 82. what is the minimum score nomar needs to earn on the fifth test in order to achieve his goal?

Nomar's first four scores are 9 points below, 3 points above, 9 points above, and right on his desired average, for a net total of 3 points above his desired average of 82.

To maintain or improve his average of 82, Nomar needs to earn a score that is no lower than 3 points below 82. That is, he must earn 79 or higher.

cosine

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