Solve the systems graphically: 1. x−2y=6 3x+2y=−6 2. x−y=0 2x+3y=−5 3. y+3x=0 x−y=4 x+y=−2

Orly uses 2 cups of raisins for every 12 cups of trail mix she makes. how many cups of trail mix will she make if she uses 8 cups of raisins?

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

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