The cost of 9 small boxes of mixed organic vegetables is $180. The cost of 1 small box of mixed organic vegetables is $
The cost of 20 small boxes of mixed organic vegetables is
$
more than the cost of 1 small box.
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Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?

What is the slope of the line shown below?