none
p. 351: 7-11, 33-38
homework help
p. 342:2-4, 9-14, 17-19
p. 334: 20-31, 35
p. 325: 12-20, 24-26, 41-44
p. 308: 1-4, 7
p. 311: 21-23
p. 305: 7-15, 18, 19
p. 298: 6,8,10,14,18
