Answer
$1.7 \leq y \lt 12.5$
Work Step by Step
Given: $-9.5 \lt 3-y \leq 1.3$
$-9.5 \lt 3-y$ or $3-y \leq 1.3$
$-12.5\lt-y$ or $-y \leq-1.7$
$y \lt 12.5$ or $y \geq 1.7$
$1.7 \leq y \lt 12.5$
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