Can someone help me with this problem please?

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) For the Peachtree Airport problem, compute the average number of planes that will stack up, waiting to land. It is (type number only, one decimal, no text) For the Peachtree Airport problem, compute the average time (in hours) a plane must wait in line before it can land. It is (type number only, one decimal, no text) For the Peachtree Airport problem, compute the average time (in hours) it takes a plane to clear the runway once it has notified the airport that it is in the vicinity and wants to land. It is (type number only, no text) The FAA has a rule that an air traffic controller can, on average, land planes a maximum of 45 minutes out of every hour. There must be 15 minutes of idle time available to relieve the tension. The current utilization factor/rate of the Peachtree Airport is 60% 75% 80% 95% Based on FAA rule, the Peachtree Airport needs to hire an extra controller. True False