Asoftball team is ordering pizza to eat after their tournament. they plan to order cheese pizzas that cost $ 6 each and four-topping pizzas that cost $ 10 each. they order 6. c cheese pizzas and f four-topping pizzas which expression represents the total cost of all of the pizzas they order? b. c + f c 6c + 10f a. 6 + 10 d. 6f + 10c