7.7 Pencil and Paper Problems: 1ab, 4, 5, 6a, 8. 7.8 Maple Problems: 1, 2, 3, 4. 8.1 Pencil and Paper Problems: 2, 3, 6, 10, 15. 8.2 Maple Problems: 1a, 2, 3. 8.2 Pencil and Paper Problems: 4, 8, 11, 13.