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OpenStudy (anonymous):
Nina has 25 tennis balls and Hal has 30. Which equation can be used to calculate how many more tennis balls Hal has than Nina? A. x + 25 = 30 B. x – 30 = 25 C. 25 – x = 30 D. 30 + 25 = x
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OpenStudy (anonymous):
Do you know why it should be A?
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