Dominick has 24 baseball awards and 18 soccer awards. He wants to build shelves so that he can display all his awards. He wants the same number of each type of award on each shelf. What is the greatest number of shelves Dominick will make?

Dana wants to identify the favorite professional baseball team of people in her community. she stands outside a local sporting goods store and asks every other person who enters, "what is your favorite professional baseball team? " will the results of her survey be valid? explain.