You are driving on a divided highway. You see that the right edge of the roadway is painted yellow. What does this mean?

If the yellow edge of the roadway is on your right, you are driving in the wrong direction. (The left edge should be painted yellow, and the right edge should be painted white.) Wrong-way accidents tend to be head-on collisions, which are often fatal. For your safety, pull over to the shoulder (which may be on your left in this situation) as soon as you can safely do so.