Answer: There are 36 possible choices for a single serving of frozen with one topping.
Step-by-step explanation:
Since we have given that
Number of different flavors of frozen yogurt = 3
Number of different toppings = 12
So, Total number of possible choices for a single serving of frozen yogurt with one topping is given by
[tex]12\times 3\\\\=36[/tex]
Hence, there are 36 possible choices for a single serving of frozen with one topping.