algebra

If you are looking at the horizon, you can determine the distance you are from the horizon in miles, D, from a height, h, in feet by the equation of D = . If you are standing on a mountain top that is 12,000 feet in elevation, how far are you from the horizon?

To earn full credit, show how you solved the problem by using correct mathematical symbols and by explaining thoroughly in words each step. please include an introduction and a conclusion