Math question Helpppp!!?!?!!

When ordering the Kids' Lunch at Burger Universe, the costumer must choose a size, whether or not to have cheese, a side order, and a type of drink.

Here are the possibilities for each choice.
Choice: size, cheese?, side order, fruit drink
Possibilities: junior, small, medium, large
with cheese, without cheese
fries, onion rings, fruit cup, cheese sticks
orange, grape, cherry, lemonade, mango
How many Kids' Lunches are possible?

Multiply all the values.
4 sizes
2 cheese or no cheese
Side order- 4
5 drinks

160 combinations

15*15=225 possibilities

5*9*2=90

4*2*4*5 = 160