Solve the pair simultaneous equations
2x+y=7
x -2y=1​

Rosy waxes 2/3 of her car with 1/4 bottle of car wax. at this rate, what fraction of the bottle of car wax will rosey use to wax her entire car

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12