A plane has a speed of 275 km/hr. The wind is in the opposite direction as the plane with a speed of 75 km/hr. What is the combined speed? A. 350 km/hr
B. 309 km/hr
C. 200 km/hr
D. 264 km/hr

Can someone explain to me how to do this problem ?

What is the final velocity of the initial velocity of 25 and -50?

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.