Problem 1.22

Problem 2.9

Problem 2.10

Problem 2.13

Problem 3.2 parts (i), (iii), (iv)

Problem 3.5 parts (ii), (iv), (iv)

Problem 3.6 parts (ii) , (iv)

Problem 3.12

Problem 3.14

Problem 4.6 parts a, c, e

Problem 4.11 parts a, c, e

Problem 4.13 parts a, c, e