Question

What is 800,000,000 meters in scientific notation

Answer 1

8 x 10^8 = 800,000,000

In Scientific Notation, your goal is to get your the number you're multiplying by 10 (8 in this case) to be between 0 and 10.  Therefore, you would NOT have 80 x 10^7 because 80 is not between 0 and 10.

Answer 2

The term is really  first expressed as 800000000.0. Move 8 decimal places to the left from the starting point and write out:

8.0 x 108

And that's what your answer is :3