When planning an airplane route, the trip planner must be careful to consider the range the aircraft can travel and the availability of airports to stop and refuel. A large commercial jet airplane burns approximately 5 gallons of fuel per mile flown, Plus about 8500 gallons of fuel per trip to reach cruising altitude. With a usable fuel capacity of 50,000 gallons (there is additional fuel reserve for emergencies), describe the acceptable distance for which an airline could establish a non-stop flight. For flights originating from Chicago, determine which cities could be safely reached by a non-stop flight.