Problem: How many mg of a 3.50mg sample of Tc-99 will remain after 4 half-lives have passed? A. 0.055mg B. 0.109mg C. 0.219mg D. 0.438mg E. 0.875 mg

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How many mg of a 3.50mg sample of Tc-99 will remain after 4 half-lives have passed?

A. 0.055mg

B. 0.109mg

C. 0.219mg

D. 0.438mg

E. 0.875 mg

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