If the domain of the square root function f(x) is x less-than-or-equal-to 7, which statement must be true?

What are the solutions of the equation? 5z^2 + 9z - 2 = 0 a. 1, -2 b. 1, 2 c. 1/5, -2 d. 1/5, 2

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?

Graph the following system of linear inequalities. identify at least two points in the solution: y < 5 - 2x | x + 5y > -7