Only one, but it takes nine years.
One Brazillion.
Depends on the supply and demand curve
One. Unless it's a blowout then the whole team shows up.
None. Anything not completed during the lesson is added to the homework.
Because it doesn't take four years to learn how to make a sandwich.
Avo, CA does.
Only one but it may take him/her more than five years to do it.