SOLUTION: at aunt edna's diner, a customer can chose from 5 appetiziers, 7 entrees, 4 side dishes, and 6 desserts. How many different meals can be made by selecting one item from each course
There are some combinations of food that some people consider as impossible.
For example, milk and salad of cucumbers or/and tomatoes.
I hope that among "the aunt edna's diner" there are no such prohibited combinations.