Card Verification Code can be found on the back of the card, usually
within the signature panel.
can be found on the front of your card, just above the
number on the right side.
I have worked for the past five years as a tutor, mostly in math. I love helping a student understand the material they are struggling with. There is no moment more rewarding then when they are frustrated and you explain something in a different enough way that that look of comprehension suddenly dawns on their face. Then they look up at you and you can tell they are hopeful, because they finally get it.