Question

Troy can order a large or small snow cone there are 15 flavors and two toppings from which to choose how many ways can Troy order a snow cone

Answer 1

Troy can order either one of  2  sizes.  For each of them ...
He can order any one of  15  flavors.  For each of those ...
He can order either one of  2  toppings.

Total possibilities = (2 x 15 x 2)  =  60 different snow cones.