During your class field trip, the teacher plans at a local restaurant and has up to $180 to spend. Which inequality describes the most number of Combo A meals she can purchase?

9.99≤180
8.99≥180
8.99≤180
9.99≥180

The correct inequality is 9.99x ≤ 180, where x represents the number of Combo A meals. This inequality states that the cost of each Combo A meal multiplied by the number of meals must be less than or equal to $180, which ensures that the total cost doesn't exceed the budget.