The answer will be 3) if not search or wait for multiple answers and pick the best choice
30 + 90 = 120 is the answer i beleive
2 * plane speed in still air = 289mph + 257mph = 546
plane speed in still air = 273 mph
plane speed in still air + wind speed = 289
273 + wind speed = 289
Therefore, wind speed = 16 mph