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3. An instructor found the class average on ten tests to be a 71. Nine of the scores were 96, 44, 82, 70, 47, 74,

3. An instructor found the class average on ten tests to be a 71. Nine of the scores were 96, 44, 82, 70, 47, 74, 94, 78, and 56. What was the tenth score?

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