Answer:
Sam can order 12 ice cream deserts.
Explanation:
Sam has choices from 2 sizes, 3 flavors, and 2 toppings.
For 2 sizes come 3 flavors, this means there are 2 * 3 = 6 types of ice creams Sam can get from the combination of sizes and flavors.
Now these 6 combinations come with additional choice of 2 toppings. This means when these the toppings are added, Sam gets 6*2 =12 different types of ice creams Sam can by.
Thus, Sam can order 12 different ice-creams.