Charlene is a writer going on a trip. She is bringing several copies of her latest book in her suitcase. The suitcase itself weighs 5 pounds, and each book weighs 3 pounds. Her full suitcase can weigh no more than 50 pounds. Explain and defend if Charlene will be allowed to bring 20 books with her. Write an equation or inequality to represent the problem situation. This problem requires you to show your work and explain your reasoning. Your explanation should be written so that another person could read it and understand your thinking.

Be sure to –
Answer the question prompt
Write an equation or inequality that represents the problem situation
Justify your solution algebraically or using a model such as a table, graph, number line, or other illustration