Depend on where you live, if you live at U.S sorry, they barely teach shit at U.S high school.
Here is a example:

I came from China 5 years ago, first time take the SAT (Freaking don't speak english at all) got 1100, three years later after i came to US, retake the SAT and got like 950 on my SAT.

I think that tell you something about US education? Well, I went to a getto ass high school... maybe that's a factor, but still. They fucking mudered my IQ.