Please I really need help with this.

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?