What is the value of x, when x2 + 5 = 21? A) 2 or -2 B) 4 or -4 C) 5.5 or -5.5 D) 8 or -8

What is the solution to the inequality

Complete the statements about the system of linear equation respresented by the tables the equation respented the left table is

If 20% of a number is 35, what is 50% of that number?