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Sara worked 28 hours last week. Joan worked 6 hours less than Sara, and Erin worked half as many hours as Joan. How many hours did Sara, Joan, and Erin work last week?

Sara worked 28 hours last week. Joan worked 6 hours less than Sara, and Erin worked half as many hours as Joan. How many hours did Sara, Joan, and Erin work last week?
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Sara worked 28 hours last week. Joan worked 6 hours less than Sara, and Erin worked half as many hours as Joan. How many hours did Sara, Joan, and Erin work last week?

User Mbq
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sara worked 28. Joan worked 22. and Erin worked 11 hours

User Exprove
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