Answer:
x= 451 mph speed of plane in still air.
Step-by-step explanation: without the wind it will be 451 still in the air. but the wind speed is Convert a wind speed measured in kilometers per hour to mph: Divide the kilometers per hour wind speed by 1.61 to get the wind speed in mph. If your wind speed is 161 kph, for example: 161 kph/1.61 = 100 mph. wich means your wind speed is 161