Kekai's family is having a garage sale. Kekai sells 5 shirts and 5 pairs of pants. Each shirt sells for $1, and each pair of pants sells for $3. If Kekai gives his parents half of the money he earns from selling his clothes, how much money does Kekai have left? Let's be accurate as possible.
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From selling his shirts, Kekai makes 5 * $1 = $5. From selling his pants, Kekai makes 5 * $3 = $15. The total amount of money Kekai earns is $5 + $15 = $20. Since Kekai gives half of the money to his parents, he has $20 / 2 = $10 left.
The answer: 10.
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