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Andrew purchased n pens from the school book fair for $1. 19 each. Andrew paid with a $20 bill and received $5. 72 in change. How many pens did he Andrew purchase?

User Simon West
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Answer: 12

Step-by-step explanation: 1.19 times 12 is 14.28. 20-14.28 is 5.72

User Ilya Kisil
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