Brenda and nine of her friends want to order a pizza. They decide that each person will eat 2 slices. If each pizza has 4 slices, how many pizzas should they order?
All together, Brenda and her friends make a group of 1 + 9 = <T>add(1, 9)=10 people
If they each want to eat 2 pizza slices, there should be 10 * 2 = <T>multiply(10, 2)=20 slices.
Since a pizza has 4 slices, they will have to order 20/4 = <T>divide(20, 4)=5.0 pizzas.
