How many different pizzas combinations can be created using three toppings when you have 10 to choose

from?

120 different combinations

Step-by-step explanation:

How complicate do you want it be? consider or not consider the repeat of topping or the order of toppings.

If not consider the order of topping and the topping can't be repeated than

C (₁₀, ₃) = (10 x 9 x 8) / (3 x 2 x 1) = 120