Mesa wants to order salad, pizza, and dessert, but he can't decide in what order he wants to eat them. How many different choices does he have?

first course: 3 choices

second course: 2 choices

different combinations: 3*2*1=6

unless, he eats three of each, or two desserts,then pizza.

I would sit out for apple pie, cheery pie, and then followed by red velvet cake, if it were allowed.