math
posted by marie .
using the fundamental counting principle with three or more groups of items
A pizza can be ordered with three choices of size (small, medium, or large), four choices of crust (thin,thick,crispy, or regular, and six choices of toppings (ground beef, sausage, pepperoni, bacon, mushroom, or onions). How many onetopping pizzas can be ordered?

Multiply the number of choices together.
3 x 4 x 6 = _____
I did not know that was called the "fundamenntal counting principle".