What is the measurement of angle x (in degrees)?

Explain how you got your answer.

Kylie explained that (-4x+9)^2 will result in a difference of squares because (-4x+9)^2 (-4x+9)^2 =(-4x)^2+(9)^2=16x^2+81

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red