Question
Mr. Yang wants to buy the same type of notebooks. If he buys 4 notebooks, he will have $3 left. If he buys 7 notebooks, he will be short of $8.70. How much do 4 notebooks cost?
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Mr. Yang wants to buy the same type of notebooks. If he buys 4 notebooks, he will have $3 left. If he buys 7 notebooks, he will be short of $8.70. How much do 4 notebooks cost?