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?

Answer 1

Let's say the price of one Combo A meal is $x. The teacher has up to $180 to spend, so the inequality would be:
Total cost of Combo A meals ≤ $180.
Since she wants to purchase the most number of Combo A meals, the total cost should be equal to $180, not more. So the inequality is:
Number of Combo A meals * Price of one Combo A meal ≤ $180.
Which can also be written as:
x * Number of Combo A meals ≤ $180.