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Twelve books cost $59.88 and 21 books cost $104.79. Is there is a constant of proportionality between these purchases?
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Twelve books cost $59.88 and 21 books cost $104.79. Is there is a constant of proportionality between these purchases?

User ZAY
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1 Answer

5 votes

the answer to your question is $4.99

User Diginoise
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