Number 5 is tripping me up because it works in the inverse as well -- at least the way I've arranged it:

If the necessity of safety has demanded an unscheduled stop ---> then an unscheduled stop will occur.

/if an unscheduled stop does not occur ---> /then the necessity of safety has not demanded that an unscheduled stop occur.

If someone who figured this out could comment. Feel like the video was a bit lacking.

found the trouble in the word "are". Had it been "must be" or "always are" this would be a different scenario. Being cited as late guarantees that a student arrived 5+ past, because thats the rule for that particular situation. However, being more that 5 minutes late doesn't guarantee being cited as late.

google helped me on this one. i was getting too caught up in the language.

I had to reorganize the question in my head to get this one. I copied and pasted the stimulus into my notes, and then started with what I thought was the most important information, which was the last sentence. The middle sections could also be condensed to make more sense. It took me longer than I'd like to admit to figure out why I got this one wrong, but i think i finally get it.