Solve the problem.Elaine had 65 buttons, and her grandmother donated 5 cards of buttons to the collection. Elaine sorted the buttons into 10 piles, putting 9 buttons in each pile. How many buttons were on each card from Elaine's grandmother?
A. 85 buttons
B. 5 buttons
C. 88 buttons
D. 63 buttons
Answer: B
Mathematics
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?
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?
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?
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C. 
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