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February 1, 2015

February 1, 2015

Posted by **Speedo** on Monday, September 9, 2013 at 6:08pm.

- math -
**Steve**, Tuesday, September 10, 2013 at 12:27am7/(1-r) = 4

7 = 4-4r

r = -3/4

The second part is now obvious, right?

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