Gina is having a party and wants to spend less than $490. She has already spent $400. The only item left on her list is pizzas, which cost $10 each. How many pizzas, x, can she purchase and stay under her budget? Select the inequality that includes the largest number of pizzas she can purchase and still stay under her budget.

The cost of the pizzas is $10 each, and Gina wants to spend less than $490. The cost she has already spent is $400. Therefore, Gina can purchase x pizzas while staying under her budget by solving the inequality 10x + 400 < 490.