Find the product.

(3p – 7)(3p + 7)

a. 9p^2 – 49

b. 9p^2 + 42p + 49

c. 9p^2 + 49

d. 9p^2 – 42^p – 49

Which of the following is the shape of a cross section of the figure shown below

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?

Side xy of triangle xyz is extended to point w, creating a linear pair with ∠wyz and ∠xyz. measure of an exterior angle what is the value of x? 64 80 100 180