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MGSM / 萨拉想给自己买一件新夹克和 2 双鞋。她想要的夹克售价 30 美元,每双鞋售价 20 美元。萨拉照看了邻居的孩子 4 次,每次照看他们赚取 5 美元。每次她修剪…

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萨拉想给自己买一件新夹克和 2 双鞋。她想要的夹克售价 30 美元,每双鞋售价 20 美元。萨拉照看了邻居的孩子 4 次,每次照看他们赚取 5 美元。每次她修剪草坪,她的父母都会付给她 4 美元。如果萨拉在开始照看小孩之前已经存了 10 美元,她要修剪多少次草坪才能买得起夹克和鞋?

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