How not to get your admissions revoked (Caltech)?

I have been admitted to caltech. It is the middle of my second semester and I have gotten 3 B’s and 2 A’s on my report card. What is the lowest gpa I can get, and still maintain my acceptance. Also is that Unweighted or weighted?

I’d check their website or ask them directly about it. If they don’t have an answer for you, then I’d assume a few B’s wouldn’t mean your acceptance would be rescinded.