DONT DELETE MY ANSWER IM GOING TO HELP HIM/HER
The answer is b. It is the only choice that equals the right answer. You could also write this as 3 * 10^4, which is equivalent to b.
Hey there!
These are technically expressed as fraction. When you divide a fraction by another, you can replace the second fraction with its reciprocal and you can now multiply the fractions together instead.


Now, just multiply across the top and the bottom. You can first cancel out any terms that are repeated or similar.



Your answer will be

.
Hope this helped you out! :-)