@MathFan21 Your ECs and SAT Subject Test scores look great, but for competitive schools like UCB and UCLA you might have trouble with your GPA (although it really isn’t bad; it’s quite good, actually, especially with your courses). Just make sure you write an amazing essay, have great teacher recs, and you’ll be good.
I’m almost sure you’ll have no problem with getting accepted into all the UCs except UCB and UCLA (because those two are the most competitive of the bunch).
Regardless, best of luck!