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Mathematics, 18.02.2020 02:30 holaadios222lol

8. Karen makes $5 per hour babysitting and $12 per hour giving music lessons. One weekend, she worked
a total of 18 hours and made $139. How many hours did she spend babysitting?

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8. Karen makes $5 per hour babysitting and $12 per hour giving music lessons. One weekend, she worke...
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