PLEASE HELP <3 PROBABILITY

Question

A sandwich bar allows customers to construct their own sandwiches by choosing from 3 kinds of buns, 4 kinds of condiments, 4 kinds of veggies, and 3 kinds of meats. How many different sandwiches consisting of one bun type, one condiment type, one veggie type and one meat type could be created?

number of sandwiches = __?__

Answer 1

First choose a burn, THEN (whatever burn was chosen) choose a condiment, THEN a veggies, THEN meat. Multiplication principle tells us the multiply the number of possibilities at each stage. Already know 3 kinds of burn, 4 kinds of condiment, 4 kinds of veggies, and 3 kind of meat.

Total is 3. 4 · 4 · 3 = 144

Answer 2

3 * 4 * 4 * 3 = 144