## Algebra 1

$abs(18.55-l) \leq.05$ (length) $abs(36.75-w) \leq.05$ (width) $18.5 \leq l \leq 18.6$ $36.7 \leq w \leq 36.8$
$abs(18.55-l) \leq.05$ $abs(36.75-w) \leq.05$ $abs(18.55-l) \leq.05$ $18.55-l\leq.05$ and $18.55-l\geq -.05$ $18.55-l\leq.05$ $18.55-l+l-.05\leq.05+l-.05$ $18.5 \leq l$ $18.55-l\geq -.05$ $18.55-l+l+.05\geq -.05+l+.05$ $18.6 \geq l$ $abs(36.75-w) \leq.05$ $36.75-w\leq.05$ and $36.75-w\geq -.05$ $36.75-w\leq.05$ $36.75-w+w-.05\leq.05+w-.05$ $36.7 \leq w$ $36.75-w\geq -.05$ $36.75-w+w+.05\geq -.05+w+.05$ $36.8 \geq w$