Problems in bold require full solutions.  For the rest of the problems, do as many as you can in 30 minutes.

 

8.1:  # 2, 6, 7, 10, 12, 17, 19, 21, 23, [28], 29

 

8.2:  # 1, 3, 5, 8, 15, 25, [26], 27