An ice cream shop offers 3 ice cream flavors,3 types of syrup, and 2 toppings for sundaes. how many different ways are there to make a sundae wig one ice cream flavor, one type of syrup, and one topping?
a. 8
b. 11
c. 18
d.27

I'm sure that there is a short way to do thissorry but I don't know it. 

So, what you need to do is list the ice cream flavors (let's say strawberry, vanilla, and chocolate), the syrups (caramel, fudge and butterscotch) and the toppings (sprinkles and cherries).
Then find all the ways that you can combine them. With strawberry ice cream: strawberry, caramel, sprinkles;
strawberry, caramel, cherries;
strawberry, fudge, sprinkles;
strawberry, fudge, cherries;
strawberry, butterscotch, sprinkles;
strawberry, butterscotch, cherries. And do the same for the other two. Therefore, the total would be 18 combinations.