Answer
The $17^{\text{th}}$ term is $36$.
Work Step by Step
The $18^{\text{th}}$ term is $32$ and the common difference is$-4$ so we simply subtract $-4$ from $32$ to get the $17^{\text{th}}$ term:
$a_{17}=a_{18}-d$
$a_{17}=32-(-4)$
$a_{17}=32+4$
$a_{17}=36$