The evidence is the majority of the piece and the support that backs up the thesis.
When you round to the nearest tenth, you just look at the tenths place. In this case it's the 8. If the next number is below 5 then it stays the same. If it's above you add one. So your number would be 5,280. If the original number was 5,286 then the answer would be 5,290. Anyway the final answer is 5,280.
I will defeat you yelled the man too