Answer:
380
Step-by-step explanation:
1200 + 700 = 1900/5 = 380
Longer wavelength means lower frequency (lower pitch)
Answer:
Gene ran faster
Step-by-step explanation:
The fastest time is the smallest time since they ran the same distance
gene ran 90 meters in 16.3 seconds.
alma ran 90 meters in 17.2 seconds
16.3 < 17.2
Gene ran faster