I can't get the photo out of my mind. It makes me think that it could have to do with sports and that would work for clue 9 also because we all know that the southeast has to best in all sports. Anyway, I really don't have a solid guess. I also think that the "1x = 0.0321507y. X is more commonly used in more countries while y in less countries I would say." could be the measurement system. 1x being The metric system and the other being The United States customary system. Well that's I've got got, can't wait to find out.