<span> 0.000268 = 2.68 x 10^-4
........................................</span>
To find the percent, divide 9 by 27 to get a decimal, then multiply the decimal by 100 to get the percent:
9 / 27 = 0.333
0.333 x 100 = 33.3%
The answer is a and remember to use the pythagorean theorem to answer these questions. The numbers are usually listed leg, leg, hypotenuse.
Okay so, your answer should be 10. I wrote out each step but my handwriting is bad. let me know if I need to redo it for you!