83. Martina had $231. She spent 3/7 of her money on new clothes. She spent 2/3 of the remainder on shoes and a purse.
How much money does Martina have left?
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She spent 3/7 of 231 on clothes. So she spent (3/7)*231 = $99

Now she has 231-99 = $132 left

She spent (2/3) of 132 on shoes and purse. So she spent (2/3)*132 = $88

At the end she has 132-88 = $44 left

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