Which table represents a function?

In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29

From the top of a tree a bird looks down on a field mouse at an angle of depression of 50°. if the field mouse is 40 meters from the base of the tree, find the vertical distance from the ground to the bird's eyes.