1. Good question, don't believe I have noticed. Have to look that one up.
2. If you have filed IFR, it is 45 minutes.
3. 91.169 - ALWAYS, except:
A) If a standard IAP exists for the first airport of intended landing and:
B) 1,2,3 rule
Don't forget about the WX mins for the alternate:
A)At the ETA to the alternate the CIG/VIS have to be at or above the following mins:
1. If an IAP has been published for that particular airport, use the mins in that procedure. If none are specified use the 600-2 (precision), 800-2 (non precision) rule.
If no IAP has been published you must be able to descend from the MEA, approach, and land under VFR.
Make sure you know this well for your oral. Good Luck, ILS