Hello,
Your answer to this problem is 400/3
Hope this helps!
The answer is B I think sorry if it’s wrong
It's a brief of intense high energy radiation from the sun's surface. When it happens it disrupts the earth's communication and power line transmissions
A - the amount of time needed to travel the distance
The formula for speed is distance/time and the unit is m/s. Therefore you divide the distance travelled by the time it took to travel it.