6. Antonio's Pizzaria charges $10 for a large pizza, plus $1.50 for each additional topping.

Answer:
Cost: $11.50, $13, $14.50, $16, $17.50
Step-by-step explanation:
the pizza's 10 + 1.50x
its always 10 plus the price of the toppings
(x is the amount of toppings)