Answer
22.54%
Work Step by Step
$y=100*(2.7)^{-.1*x}$
$x=15$
$y=100*(2.7)^{-.1*x}$
$y=100*(2.7)^{-.1*15}$
$y=100*(2.7)^{-1.5}$
$y=100*.2254$
$y=22.54$ percent
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.