Derek collects quarters that have the names of the 50 U. S. states on them. He has collected 12 different state quarters in 2.5 months. How long will it take him to collect all 50?

Identify whether the figure has plane symmetry, symmetry about an axis, or neither.

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

Which shows the correct substitution of the values a, b and c from the equation 1=-2x+3x^2+1