Final answer:
The inequality that represents how much Mario can spend without running out of money is 8x + 2y ≤ 150.
Step-by-step explanation:
To determine the inequality that represents how much Mario can spend without running out of money, we need to consider the cost of pizzas and bottles of cola. Pizzas cost $8 each and bottles of cola cost $2 each. Let x represent the number of pizzas and y represent the number of bottles of cola. Mario can spend a maximum of $150, so the inequality would be: 8x + 2y ≤ 150.