Newton has 16 baseball cards. Descartes has 1/4 as many cards as Newton, and your friend has 1/2 as many cards as Descartes. How many baseball cards do Newton, Descartes, and your friend have in all?

Newton has 16 baseball cards, Descartes has 4 baseball cards, and your friend has 2 baseball cards. In total, they have 22 baseball cards.