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December 21, 2014

December 21, 2014

Posted by **Angela** on Sunday, July 24, 2011 at 7:48pm.

- Pre Cal -
**Autum**, Sunday, July 24, 2011 at 8:32pmwell if u have 100 g to start and half decays in 2 minutes so after 2 minutes u have 50 g then 4 minutes 25 grams then 6 minutes u have 12.5 g then 8 minutes u have 6.25 grams..you just divide ur original amount by two than that number by 2 (for every 2 minutes)

- Pre Cal -
**heather**, Thursday, August 23, 2012 at 9:26pm25,6.25

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