The Percent $P$ Of the Drug Triazolam (A Drug for Treating Insomnia) Remaining

Multiple Choice

The percent $P$ of the drug triazolam (a drug for treating insomnia) remaining in a person's bloodstream after $t$ hours is given by $P = e ^ { - 0.3 t }$ . What percent will remain in the bloodstream after 6 hours?

A) 0.2%
B) 16.5%
C) 28.7%
D) 0.8%
E) 3.6%
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