Somebody plz help. I’ll rate you Brainalist.

What is the difference between the predicted value and the actual value

Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?

10x − 5y + 14 = 0 whats the answer pls