Answer
81.98 percent
Work Step by Step
$y=100*(2.7)^{-.1*x}$
$x=2$
$y=100*(2.7)^{-.1*x}$
$y=100*(2.7)^{-.1*2}$
$y=100*(2.7)^{-.2}$
$y=100*.8198$
$y=81.98$
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