Just need to solve number 8 with quadratic formula

Which answer is the solution set to the inequality |x|< 9? a. x< -9 or x> 9 b. x> -9 and x< 9 c. x> -9 or x< 9 d. x< 9 and x< 9

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

The base of a triangle is 8 1 3 meters and the height of the triangle is the fourth root of 16 meters meters. what is the area of the triangle?