Can i get help on this?

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

Consider the triangle. which shows the order of the angles from smallest to largest? angle a, angle b, angle c angle b, angle a, angle c angle b, angle c, angle a angle c, angle a, angle b

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters