Answer:
 Bagel
                    plain             Â
Tuna Eggs Chicken salad Cream cheese butter
                   Poppy
Tuna Eggs Chicken salad Cream cheese butter
                   Wheat
Tuna Eggs Chicken salad Cream cheese butter
3b
There are 15 combinations because tuna, eggs, chicken salad, cream cheese, and butter = 5
there are 3 different types of bagels plain poppy and wheat. with this information you can tell that the 5 combinations x 3 bagel types equal 15 total
                 Â