57 x 8.50 = 484.50 please show me the formula in doing it​

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

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

On a piece of paper graft y+2> -3x-3 then determine which answer matches the graph you drew