Question
Mr. Ma wants to buy the same type of pens. If he buys 4 pens, he will have $3 left. If he buys 11 pens, he will be short of $4.70. How much do 4 pens cost?
4 m

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Mr. Ma wants to buy the same type of pens. If he buys 4 pens, he will have $3 left. If he buys 11 pens, he will be short of $4.70. How much do 4 pens cost?