questions about college apps

<p>I have some questions about the college applications:
1) If we are filing out the common app on the internet, do we mail in separately our resume along with the letters of recommendation? Or is there a place on the common app website where we can attach things?
2) Are all letters of recommendation supposed to remain private? meaning I as a student can't see it?
3) if we need three letters of recommendations for a particular college, and say we are applying to 7 colleges total, are you supposed to have your teachers printout 7 copies of the letter and give each of them 7 stamped envelopes? which will be a total of 21 stamped envelopes that you would have to prepare. Or can I put all three letters into one big envelope?</p>

<p>bump.........</p>