Answer:
4 sizes and 3 toppings = 12 combinations
2 sizes and 6 toppings = 12 combinations
3 sizes and 4 toppings = 12 combinations
Explanation:
In this case so that customers have 12 options, what we must do is decompose the number, that is, look for two numbers that when multiplied give 12 as the result, for example:
4 sizes and 3 toppings = 12 combinations
2 sizes and 6 toppings = 12 combinations
3 sizes and 4 toppings = 12 combinations