scorewise, what exactly does a college see?

<p>I'm a rising junior so i'm not very familiar with the whole score-reporting process...
1) do you send your score with your entire application package when you apply to college as a senior, or do you just send scores whenever?
2) if i take the same subject test twice, will they see my lower score?
3) if i take more than 3 subjects, can i send only the ones i want or will they end up seeing the other subjects too?</p>

<p>thanks for your help!!
(let me know if there's a thread that already answers these questions)</p>