Answer
$w\leq18$
any width greater than 0 and less than or equal to 18 feet
Work Step by Step
$2l+2w\leq96$
$2(30)+2w\leq96$
$60+2w\leq96$
$60-60+2w\leq96-60$
$2w\leq36$
$\frac{2w}{2}\leq\frac{36}{2}$
$w\leq18$
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