Which of the following is most likely the next step in the series

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

X2 + y 2 = 36 x + y = 6 solve the system of equations.

Pls the last one and it has to be like number 6