Solve.Muffy buys pencils, sharpeners, and erasers from the bookstore for her class. She bought 4 more pencils than sharpeners and 5 fewer erasers than sharpeners. A pencil costs 21 cents; a sharpener costs 39 cents; and an eraser costs 20 cents. If Muffy spent a total of $13.44, how many erasers did she buy?
A. 22 erasers
B. 21 erasers
C. 17 erasers
D. 12 erasers
Answer: D
Mathematics
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x = 9, y = 6
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C. 23
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