Question
At a shop, Alice paid $10 for 7 items: 3 files and 4 correction tapes. The total cost of 3 files is $8 more than the total cost of 4 correction tapes. How much did 1 file cost?
4 m

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At a shop, Alice paid $10 for 7 items: 3 files and 4 correction tapes. The total cost of 3 files is $8 more than the total cost of 4 correction tapes. How much did 1 file cost?