Yogurt shop offer six different flavors of frozen yogurt and 12 different toppings. how many choices are possible for a single serving of frozen yogurt with one topping?

There are 6 choices for the flavor of frozen yogurt and 12 choices for the topping. Therefore, the total number of possible combinations for a single serving of frozen yogurt with one topping is:

6 (flavors) x 12 (toppings) = 72 choices

So, there are 72 possible choices for a single serving of frozen yogurt with one topping.