Find the diffence (9x)/(5x^2+17x+6)-(x)/(5x^2+13x-6)

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?

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?

Simplify this expression. 8x 16(x + y)