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?

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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?

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?
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?

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?
（5.4-4.8）/(1+20%)=0.5