Section 3.7 Ex 11-18,26,27
Section 3.8 Ex 1-5,7,8,9,10a,12
Section 3.9 Ex 1-4,8,9,10,14,19,21.
Section 4.1 Ex 1-4, 7, 9, 13.
Section 4.2. Ex 1,2,7,16,16,21,22
Section 4.3. Ex 1,2,4,5
Section 4.4  skipped for now
Do the handouts.
Section 4.5 Ex 1,2,5,11
Section 4.6 Ex 1abc, 2,3,6,8.