Sec 1.1: 7, 13, 14, 18, 24, 28, 39, 44, 45
Sec 1.2: 7, 10, 16b, 16e, 17b, 26, 30, 35, 40c
Sec 1.3: 5, 9, 22, 25, 31, 37b, 41
Due date: 1/17