Solve the problem.Elaine had 36 buttons. Her grandmother donated 9 cards of buttons to the collection. Elaine sorted the buttons into 9 piles, putting 9 buttons in each pile. How many buttons were on each card from Elaine's grandmother?
A. 5 buttons
B. 76 buttons
C. 79 buttons
D. 34 buttons
Answer: A
Mathematics
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