Student: Depending on what pie. Usually is $12.99
Depends on which country they're from.
Depends.
Skip to my loo.
Student: "So we know when to start Christmas shopping!"
It needed a filling.
Pi(e)
Pizza of course! If z = radius of the pizza and a = the height then * radius2 * height = Pi * z * z * a = Pizza.
Infinity plus 1. I'm sorry.