Answer:
100 watts/meter^2
Step-by-step explanation:
C. 100 watts/meter^2
A) 3, 4, 5, 6, 7, 8
2+1, 2+2, 2+3, 2+4, 2+5, 2+6= 3, 4, 5, 6, 7, 8
Speed = Distance / time.
Speed = 9000 meters / 12.12 seconds = 742.57 meters per second.
3 is the answer