Step 1 – EVIDENCE 1

Step 3 – EVIDENCE 2

Step 4 – EVIDENCE 3

Step 18 – EVIDENCE 4

Step 19 – EVIDENCE 5

Step 20 – EVIDENCE 6

Step 21 – EVIDENCE 7

Step 22 – EVIDENCE 8

Step 24 – EVIDENCE 9

Step 25– EVIDENCE 10:

Answer a) 

Answer b) 
Method 1 - 
Method 2 - 

Method explanation - 

Step 28 – EVIDENCE 11 

Step 29 – EVIDENCE 12

Step 32 – EVIDENCE 13