American dude here.
Finals were this week for high school seniors. There were only really three classes I was worried about.
The first was my AP Calculus class. For obvious reasons, as AP classes are pretty hard and mathematics isn't one of my better areas in school. Luckily, the final focused mostly on basic integration and limits, none of the "volume of solids rotated around x-axis" stuff I had been expecting. Probably passed
The second was my Advanced History class, for pretty much the same reason as above - the teacher teaches it the local community college and uses the same lesson plan here as there - but also because I needed the credit to graduate. Got a B on the final, and considering I didn't study for it at all I'd say that was pretty good. Passed the class.
The last was Honors Physics and that's because the teacher neglected teaching us anything at all, and what she did teach us was...er, not correct. Some of the things we learned included the mass of gravity and that work equals negative one divided by the number of moles in a substance. Probably won't do well since the class ended up teaching itself.
I know for sure that I'm graduating since I have all the required classes, and I expect my GPA to stay around 3.4