What is true about a figure and it’s image under a dilation

How can you find the mean absolute deviation (mad) for this set of data?

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?

At a book fair, joe bought 24 books at 3 for $5 and had $2 left. how much money did he have at first?