Question
In a shop, a box of pens costs twice as much as a folder. Mrs Lu spent 14 of her money to buy 7 boxes of pens. She then spent 57 of her remaining money to buy some folders and had $37.20 left. How much does each folder cost?
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In a shop, a box of pens costs twice as much as a folder. Mrs Lu spent 14 of her money to buy 7 boxes of pens. She then spent 57 of her remaining money to buy some folders and had $37.20 left. How much does each folder cost?