Question 84119
How many ways can you select pants, a shirt, and shoes if you have 5 pants, 7 shirts, and 3 pairs of shoes to choose from? 
# of ways = 5*7*3 = 105
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Use a tree diagram to answer the question: How many ways can you select a lunch combo if you have 6 sandwich choices, 3 side choices, and 4 choices for drinks? A lunch combo consists of 1 sandwich, 1 side item, and 1 drink.
6*3*4 = 72 selections
Comment: There will be 72 branches on your tree.

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Cheers,
Stan H.