Answer: To determine how many hours the pizza parlor will need to cook the 40 pizzas, we can divide the total number of pizzas by the number of pizzas cooked per hour.
40 pizzas / 8 pizzas per hour = 5 hours
Therefore, the pizza parlor will need 5 hours to cook all 40 pizzas in their pizza oven.
Step-by-step explanation: hope this helps!