Answer:
x >= 9.
Explanation:
To earn a free movie ticket, Liam needs at least 160 points. He already has 50 points from signing up, so he needs 160 - 50 = <<160-50=110>>110 more points.
Each visit to the movie theater earns Liam 12.5 points, so the inequality representing the number of visits he needs to make is:
12.5 * x >= 110
To solve this inequality, we need to divide both sides by 12.5:
12.5 * x / 12.5 >= 110 / 12.5
This simplifies to:
x >= 8.8
Thus, Liam needs to make at least 9 visits to the movie theater to earn his first free movie ticket.
Therefore, the solution to the inequality is x >= 9.