40 points
the speed of light in a vacuum is about 300,000,000 meters per second, which can be written a 3 x 10^n meters per second. what is n? '
a)-8
b)9
c)8
d)-9

C) 8

Step-by-step explanation:

The question is basically asking 3 times 10 to the WHAT power.

10 to the 9th is 1 billion.

10 to the 8th power is 100 million.

Times the 3 we originally started with is 300,000,000

Have a great day!

C) 8

Step-by-step explanation:

300,000,000=3 X 100,000,000=3 X 10^8

its 4 because 2 times 2 is 4, if you double the number two you get four