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题目内容
The list price of a certain tool is x dollars. In Store A the original selling price of the tool was $50 less than the list price, and the current selling price is 10 percent less than the original selling price. In Store B the original selling price of the tool was 10 percent less than the list price, and the current selling price is $50 less than the original selling price.
Quantity A
The current selling price of the tool in Store A
Quantity B
The current selling price of the tool in Store B
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以上解析由 考满分老师提供。