Help me find domain and range pls

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.