Apilot has 200 hours of flight time in single engine airplanes and twin engine airplanes. renting a single engine airplane cost $60 per hour. and renting a twin engine airplane cost $240 per hour. the pilot has spent 21,000 dollars on airplane rentals. how many hours has the pilot flown in each type of airplane?

The maximum distance (in nautical miles) that a radio transmitter signal can be sent is represented by the expression 1.23h√, where h is the height (in feet) above the transmitter. estimate the maximum distance x (in nautical miles) between the plane that is receiving the signal and the transmitter. round your answer to the nearest tenth.