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OpenStudy (anonymous):
Tom is buying 3 pens for m dollars and 4 notebooks for n dollars. Write a mathematical expression for the amount he is spending. A. 12(m + n) B. 7(m + n) C. 12mn D. 3m + 4n
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OpenStudy (anonymous):
D
OpenStudy (anonymous):
D. 3m + 4m
OpenStudy (anonymous):
thank you
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