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The lunch bill for the group was $45. Their total bill was 54 dollars, including the tip. What percent did they pay in tip? _________%

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They paid $9 in tip, which is 20% of the original bill ($45). To find out, you can subtract the cost of the food from the total bill: $54 - $45 = $9. Then, you can divide the tip amount by the original cost of the food and multiply by 100 to get the percent: ($9 / $45) x 100 = 20%.
User Joe Fratianni
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