问题描述：
SSAT数学
the price of a cold roast beef lunch is $4.80 and the price of a hot roast beef lunch is $5.40.If both prices include 20 percent for tax and tip,what is the difference in price before tax and tip?
the price of a cold roast beef lunch is $4.80 and the price of a hot roast beef lunch is $5.40.If both prices include 20 percent for tax and tip,what is the difference in price before tax and tip?
问题解答：
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