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January 29, 2015

January 29, 2015

Posted by **Jackie** on Friday, January 25, 2013 at 12:04pm.

- math -
**Damon**, Friday, January 25, 2013 at 12:11pm100 - 8.1 = 91.9

so each year number = .919 of year before

how many years before amount = 0.7 * original?

.7 = .919^n

log .7 = n log .919

-.1549 = n (-.03668)

n = 4.22 years

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