On a 750-mi trip from A to B that took a total of 5.5h, that a person took a limousine to the
airport, then a plane, and finally a car to reach the destination. The limousine took as long as the final car trip and the time for connections. The limousine averaged 55 mi/hr, the plane averaged 400 mi/hr and the car averaged 40 mi/hr. The plane traveled four times as far as the limousine and car combined. How long did each part of the trip and the connections take?