Answer:
You can make 12 possible sundaes with these toppings.
Explanation:
Chocolate, Vanilla, and Strawberry all have 4 possible outcomes:
1. Fudge & Chocolate Sprinkles
2. Fudge & Rainbow Sprinkles
3. Marshmallow & Chocolate Sprinkles
4. Marshmallow & Rainbow Sprinkles
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4 x 3 will equal 12, the total possible sundaes you can make with these toppings and ice cream flavors.