Yes, you need to remember those rules, and know which situations require which rules. That should help make it easier when doing those geometry questions.
Yeah, people carry amounts of units that they are capable of or wish to undertake. Doing 14 myself, although I've already done 2 units last year, and I know people doing higher numbers of units, and I know people doing the minimum amount of units.
There is a thing I heard where study from 4pm to 9pm will give you that amount of hours per night, but I don't even study 5 hours a week, let alone a day.
Knights ftw.
Today was an interesting day, did some maths, got some ok results in english, did a shitload of work for once this week, but still have to do a lot more work for english :(