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February 27, 2015

February 27, 2015

Posted by **Kelly** on Tuesday, October 25, 2011 at 10:45am.

- Algebra/Time -
**Steve**, Tuesday, October 25, 2011 at 12:11pm1/b = 1/22 + 1/18

b = 22*18/(22+18) = 9.9 min

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