Give the step-by-step reasoning process and then the final answer. Kim orders a $10 meal and a drink for 2.5. She gives a 20% tip. She pays with a $20 bill. How much does she get in change?
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The dinner cost 10 + 2.5 = $12.5. The tip comes to 12.5 * .2 = $2.5. So the total cost is 12.5 + 2.5 = $15. That means she gets 20 - 15 = $5 in change.
The final answer: 5.
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