Sound takes about 3 ms (3 milliseconds) to travel 1 m.
How long will it take to travel from the
centre of a cricket pitch to spectators who
are 200 m away?

0.6 seconds or 600 miliseconds

Explanation:

So if 1 meter requires 3 milliseconds, 200 meters would equal 600 milliseconds.

If you want to know how to get 600, you do 3*200

600 milliseconds = 0.6 seconds!

Hope it helps

d.7.5cm is your answer

the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer