Serious answers . i need on math .

4+(2+x) can you me solve this problem

If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x)

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.