How do I answer this log equation?

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- April 9th 2010, 03:30 PM #1

- Joined
- Oct 2009
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- April 9th 2010, 03:39 PM #2

- April 9th 2010, 05:58 PM #3

- Joined
- May 2006
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- Lexington, MA (USA)
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- April 10th 2010, 10:34 AM #4