Lexus of Maplewood's Blog
Lexus of Maplewood 3000 Highway US-61 North Maplewood, MN 55109 www.lexusofmaplewood.com
Tuesday, May 21, 2013
A certain radioactive material has a half-life of 160 years. If you have 1 kg of this material now, how many grams will you have after 640 years?
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