Can please explain step by step?

A candy company places an average of 20 truffles in a one-pound box. The number of truffles per box never varies from the average by more than 2.

A. What could be an absolute value inequality to represent this situation, using x to represent actual number of truffles per box?

B. Solve the inequality. Show all work leading to your answer.

C. Graph the solution on a number line. Be sure to include number labels to show the values of x on the number line.

D. What does the solution to the inequality represents for this situation?