The speed of light is ×2.998108/ms . how long does it take light to travel 30.cm ? set the math up. but don't do any of it. just leave your answer as a math expression.

time taken for light to travel 20 cm will be:
time=distance/speed
distance=30 cm=0.3 m
speed=2.998108 m/s
thus time taken will be:
time=0.3/2.998108=0.10006 seconds
thus the expression is:
time=0.3/2.998108