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April 20, 2014

April 20, 2014

Posted by **Jim** on Sunday, April 29, 2012 at 11:20pm.

- math -
**Steve**, Monday, April 30, 2012 at 12:12am7/(1-r) = 70

1/10 = 1-r

r = 9/10

S1 = 7

S2 = 7 + .63 = 7.63

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