Answer:
option A i. e. the first option is the correct option.
Step-by-step explanation:


300:1. A meter is 100 cm, so 9 meters is 900 cm / 3 = 300.
Answer:
1 / 20
Step-by-step explanation:
Brian = 11.74 seconds
Luis = 11.69 seconds
Difference between their times :
11.74 - 11.69 = 0.05
Expressed as a fraction of a second :
0.05 / 1 = (0.05 * 100) / (1 * 100) = 5 /100 = 1/20