An air traffic controller coordinates the movement of air traffic to make certain that planes stay a safe distance apart. Their immediate concern is safety, but controllers also must direct planes efficiently to minimize delays. Some regulate airport traffic through designated airspaces; others regulate airport arrivals and departures.
The mathematics required for air traffic controllers includes but is not limited to College Algebra, Trigonometry, Geometry, Calculus I and II, and Statistics.
In order to find the average income of an air traffic controller, please use this link.
For more information about air traffic control, the US Bureau of Labor Statistics breaks down the job of an air traffic controller into multiple sections to help better understand the requirements of becoming an air traffic controller.