Complete the following textbook problems:

o Ch. 17, p.24, # 1

o Ch. 17, p.24, # 7

o Ch. 17, p.24, # 11

o Ch. 19, p.32, # 1

o Ch. 19, p.32, # 7

o Ch. 19, p.32, # 15

o Ch. 19, p.32, # 19

o Ch. 20, p.16, # 1

o Ch. 20, p.17, # 2

o Ch. 20, p.17, # 3