The double number line below shows the number of students in Mr. Fulton's class. It shows the number of students that represents $40\%$ of students in Mr. Fulton's class.
The top number line is labeled, Number of Students. From left to right, the number line reads, 12, question mark. The bottom number line is labeled, Percent. The number line ranges from 0 percent to 100 percent.

How many students are in Mr. Fulton's class?

Respond in the space provided.

If your test is on paper, write your answer on the answer sheet.