Course Content Ex2 page 4-5 S4 Part B Ex 4 Companion (ex1 p7) PART B Ex8 page 12-13 S4 Part B Ex6 page 10-11 S4 Part B Ex9 page 15 S4 Part B Ex12 page 16-17 S4 Part B Ex19 (pages 4-23) PARTB
