Question
Shiyun had just enough money to buy 80 staplers of the same price. She bought only 40 staplers for her students and had $120 left. What was the cost of one stapler?
3 m

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Shiyun had just enough money to buy 80 staplers of the same price. She bought only 40 staplers for her students and had $120 left. What was the cost of one stapler?