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? - QAmmunity.org

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?

asked Jan 4, 2019 231k views

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