Tina purchased 1.35 pounds of Peperjack cheese, 0.9 pounds of Mozzarella cheese, and 4.837 pounds of Sharp Cheddar cheese for a party.
How many total pounds of cheese did Tina purchase for the party? _______
How many more pounds of Sharp Cheddar cheese did Tina purchase than Peperjack cheese and Mozzarella cheese combined? _______