80.5.1 problem A2 (c)
80.5.2 problem A11
80.5.3 problem B 1
80.5.4 problem B 2
80.5.5 problem B 3
80.5.6 problem B 4
80.5.7 problem B 5
80.5.8 problem B 6
80.5.9 problem B 7
80.5.10 problem B 8
80.5.11 problem B 10
80.5.12 problem B 11
80.5.13 problem B 13
80.5.14 problem B 14
80.5.15 problem B 15
80.5.16 problem B 16
80.5.17 problem B 17
80.5.18 problem B 18
80.5.19 problem B 19
80.5.20 problem B 20
80.5.21 problem B 21
80.5.22 problem B 22
80.5.23 problem B 23
80.5.24 problem B 24
80.5.25 problem C 1
80.5.26 problem C 2
80.5.27 problem C 3
80.5.28 problem C 4
80.5.29 problem C 5
80.5.30 problem C 6
80.5.31 problem C 7
80.5.32 problem C 8
80.5.33 problem C 9
80.5.34 problem C 10
80.5.35 problem C 11
80.5.36 problem C 12
80.5.37 problem C 13
80.5.38 problem C 14
80.5.39 problem C 15
80.5.40 problem C 16
80.5.41 problem C 17
80.5.42 problem C 18
80.5.43 problem C 19
80.5.44 problem C 20
80.5.45 problem C 21
80.5.46 problem C 22
80.5.47 problem C 23
80.5.48 problem C 24
80.5.49 problem C 25
80.5.50 problem C 27
80.5.51 problem D 1
80.5.52 problem D 2 (a)
80.5.53 problem D 2 (b)
80.5.54 problem D 4
80.5.55 problem D 5
80.5.56 problem D 6
80.5.57 problem D 7
80.5.58 problem D 10
80.5.59 problem D 11
80.5.60 problem D 12
80.5.61 problem D 13
80.5.62 problem D 14 (a)
80.5.63 problem D 14 (b)
80.5.64 problem D 15
80.5.65 problem D 16
80.5.66 problem D 17
80.5.67 problem D 18
80.5.68 problem D 19
80.5.69 problem D 20