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A bookstore sells used books for $8 each. Let n represent the number of books. The cost for n books is 8 xn or 8n. What is the unknown quantity?
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A bookstore sells used books for $8 each. Let n represent the number of books. The cost for n books is 8 xn or 8n.

What is the unknown quantity?

User Sloane
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4 votes
The unknown quantity is the books
User Anarno
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