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Mathematics, 25.06.2019 06:00 nelly1078

The average (arithmetic mean) of 12, 25, and x is 21. what is the value of x? a. 24 b. 25 c. 26 d. 27 explain your answer.

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The average (arithmetic mean) of 12, 25, and x is 21. what is the value of x? a. 24 b. 25 c. 26 d....
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