Deidre has $100 to spend on new clothes. She knows she wants to buy a pair of jeans for $32 and spend the rest on shirts. If each shirt costs $18, how many shirts can she buy? Which of the following inequalities represents this situation?

Let x be the number of shirts Deidre can buy.

Deidre can spend 100 - 32 = <<100-32=68>>68 dollars on shirts.
Each shirt costs 18 dollars.
So, the inequality representing this situation is 18x ≤ 68. Answer: \boxed{18x \le 68}.