Section 1.1 pp20-23

Exercises

1, 2, 4, 5-8, 11 (explain answer in text), 15, 19, 20, 22, 23-26, 27-30, 33, 35, 36, 38, 41, 45, 47, 49, 54, 56, 57, 61, 62, 65-67