Final answer:
The inequality is 14x + 7y ≤ 56, where x represents the number of T-shirts and y represents the number of movies.
Step-by-step explanation:
The inequality that shows how much money you can spend on the booth is 14x + 7y ≤ 56, where x represents the number of T-shirts and y represents the number of movies.
Since the price of a T-shirt is $14 and the price of a movie is $7, the total amount spent on T-shirts (14x) plus the total amount spent on movies (7y) should be less than or equal to $56, which is the budget constraint.
This inequality ensures that the total amount spent on T-shirts and movies combined does not exceed the available budget of $56.