SOLUTION: Can you help me with this equation? Find the average of three test scores if the first two test scores are 80 and 84. Express your answer in terms of s, the third test score

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Question 119696: Can you help me with this equation?
Find the average of three test scores if the first two test scores are 80 and 84. Express your answer in terms of s, the third test score

Answer by Fombitz(32388) About Me  (Show Source):