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I bought 4 pairs of jeans. My total bill including tax was 80.29. If each pair of jeans cost 18.50 before tax was added, what tax rate did I pay on the jeans

User Jorg Janke
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These are the instructions in the math packet my teacher gave me.
I bought 4 pairs of jeans. My total bill including tax was 80.29. If each pair of-example-1
User Mark Zhang
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$80.29/4=$20.07
$20.07-$18.50=$1.57
1.57/18.50=8.5%
User Camilo
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