Diana bought a stereo for $530, which was the retail price plus a 6 percent sales tax. How much money could she have saved if she had bought the stereo at the same retail price in a neighboring state where she would have paid a sales tax of 5 percent?
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A$1.00
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B$2.65
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C$4.30
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D$5.00
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E$5.30
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正确答案: D