Answer this question this is the first part to it: The Peachtree Airport in Atlanta serves light aircraft. It has a single runway and one air traffic controller to land planes. It takes an airplane $12$ minutes to land and clear the runway. Planes arrive at the airport at the rate of four per hour. The service rate $($# of planes$//$ hr $)$ of the airport is $($type number only, no text$)$The Peachtree Airport in Atlanta serves light aircraft. It has a single runway and one air traffic controller to land planes. It takes an airplane $12$ minutes to land and clear the runway. Planes arrive at the airport at the rate of four per hour. The service rate $($# of planes$/$hr$)$ of the airport is $($type number only, no text$)$