Question
In a bookstore, a box of staplers costs thrice as much as a folder. Mrs Song spent 15 of her money to buy 3 boxes of staplers. She then spent 79 of her remaining money to buy some folders and had $28.80 left. How much does each folder cost?
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In a bookstore, a box of staplers costs thrice as much as a folder. Mrs Song spent 15 of her money to buy 3 boxes of staplers. She then spent 79 of her remaining money to buy some folders and had $28.80 left. How much does each folder cost?