4 meters, since 100 centimeters equal 1 meter you'd divide 400 by 4 to get your answer of 4 meters. It's just basic math. Don't get so scared that you'll get your answer wrong and just focus.
You can use either of these, depending on your teacher.
2.e+14
2.0*10^14
Answer:
3.200×107 h
Step-by-step explanation:
Answer: A
Step-by-step explanation:

How does your figure look like?