Chapter 9.1, p. 416
2,3,4

9.3, p. 432
2,3,6,

9.6: p. 451
2,3,4(ab),7

9.7p. 461
1,4,7ab

9.8 p. 468
1abc, 6abc,11

9.9, p473
1,2,3,4,5,7,10