So, I have to turn the quotient answer into scientific notation.. (answer has to be in scientific notation)

6x10^24/ 8x10^8
- 7.5 x 10^2
- 7.5 x 10^15
- 0.75 x 10^3 *This is the one I pick*
- 0.75 x 10^16

3 answers

7.5 x 10^2

With scientific notation you have to have a number (less than 10 and higher than zero) multiplied by 10^...
6x10^24 / 8x10^8

= 7.5x10^15

explanation
(6/8) = .75
10^24 / 10^8 = 10^16

so .75 x 10^16
= 7.5 x 10^15
Just to be clear, the number has to be at least 1.0 and less than 10.

In interval notation that would be a number in [1.0,10.0)