Homework:
Section 18:

#5,10,15,22,25,33,37,40,41,44,45,46,49,52,55

Section 19:

#4,7,8,14,17,23,25,26,27,29,30

Section 20:

#4,6,8,29

Section 21:

#1,2,4,6,8,10,12

Section 22:

#2,11,12,16,23,23,24,26,28,29,30

Section 23:

#3,7,11,13,14,16,19,21,25,26,29,36

Section 26:

#1,3,18,19,21,22,25,27,28,29,30,34,37

Section 27:

#1,3,5,8,15,16,19,24,25,26,29,30,33,34,35

Section 29:

#4,5,6,7,13,14,18,24,25,27,29,31,32,33,35

Section 30:

#7,8,16,17,18,24,25,26,27

Section 31:

#3,4,5,9,12,22,24,26,27,29,31,32,34,36,37

Section 45:

#7,8,10,14,17,25,26,29,30,31

