Select all of the variables that are solutions of x^2 +20=12x

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?

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.