Guys this is going to be the death of me

Is fgh ~ jkl? if so, identify the similarity postulate or theorem that applies.

Write an inequality and solve each problem. for exercises 11 and 12, interpret the solution.

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4