Suppose that car A and car B are both traveling in the same direction. Car A is going and is sounding a horn with a frequency of . If car B is traveling at a speed of in front of car A, what frequency of sound does car B hear?

Note: The speed of sound in air is .

On planet Borg, a male insect is flying toward his mate at while buzzing at . The female insect is stationary and is buzzing at . What is the speed of the sound on planet Borg?