The sub shop has 7 different kinds of bread, 5 types of cheese, 5 types of meat, 4 vegetable toppings and
9 types of sauce. Assuming you will pick exactly one of each how many different possibilities are there?
There are:
7 choices for bread
5 choices for cheese
5 choices for meat
4 choices for vegetable toppings
9 choices for sauce
Therefore, the total number of possibilities is 7 x 5 x 5 x 4 x 9 = 1,800 possibilities.