Nautical Miles and Flight Planning

“A flight is planned for a distance of 632 miles. Approximately how many nautical miles is this? Show your work. A plane needs to travel 345 nautical miles. If it flies at a speed of 230 knots, how long will the flight take in hours? Show your work. You are planning a flight and have calculated the distance to be 920 miles. Your plane's speed is 250 knots. Calculate the approximate flight time in hours. Show your work.”