Chapter 4

I. Complete the following 11 problems:

1. Exercise 4-8, p. 136
2. Exercise 4-9, p. 136
3. Exercise 4-15, p. 140
4. Exercise 4-20, p. 141
5. Exercise 4-21, p. 141
6. Exercise 4-28, p. 146
7. Exercise 4-30, p. 147
8. Exercise 4-34, p. 147
9. Exercise 4-39, p. 148
10. Exercise 4-48, p. 151
11. Exercise 4-49, p. 152