I realised that I have not taught the relevant concepts to do the questions I gave in class from E10b.
SO...math homework for today, Tue 7Jul is:
Assignment E10C (pg 28-29)
Q 1, 2, 4, 5, 7, 8
Do on foolscap (different foolscap from E10b)
It is mainly TOA CAH SOH. Estimated time: 30 min