0.4x+0.5y=2.5
1.2x-3.5y=2.5
elimination by using multiplication

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl