The answer is C. 79.2 > 76.81 > 76.493
Here's the trick... if all the numbers are the same just in different orders (like in this question) look at the beginning of each answer choice and find which is the highest number... in this case it would be 79.2 in answers A and C... well go to the next number... which is higher 76.493 (from A) or 76.81 (from C) the answer with the highest is C so that's your answer! Not sure if this helped at all just a trick I taught myself might not make sense to anyone else but it always worked for me!