That would vary from where you are, to what quality or type is used.
How about praying to God for extra help here?
Depends on the situation, I would charge 1-2 hours for that, but other equipment can complicate the job. If there are garburators and water filters they often have to be removed and replaced.
This depends on what material the plumber uses, what fittings the plumber uses, how much piping will be used and how long the plumber will take.
too much...those rip offs...
$100,000
$350
$500
If you do it for a living, I would charge half of normal. If you are just handy and know how to do it, $20. That's what I have done for years. If the person feels guilty about the $20 they can add to it. If not, you did your good deed.
The exact amount will depend upon the exact plumber and what company they work for. Most plumbers in Atlanta will charge around $75 per hour.
Usually that would be 1 or 2 hours.
The cost will reflect an average of labor time and materials involved to install the fixture, a cost range is appropriate as an estimate
Im not sure what a dis poser is, But if a garbage disposer is what you are talking about sex is usually accepted as a form of plumber currency.
Depends where you live, going rate for plumbing and what kind of plumber. Most will not use PVC to rough in a house. -( Why are you not using PEX .)