Your high school guidance counselor will have accurate information on both these tests. Stop in and have a chat. I know nothing about CAHSEE, but the SAT1 test is for college-level verbal and math aptitudes. The scores range from 200 (paying the fee and breathing) to 800 (a perfect score.) So the best one can do is 1600 (800 in both verbal and quantitative parts of test)
Some colleges no longer require them, preferring to look at your course choices, extra-curricular and outside activities, writing sample, recommendations, interests, etc. And colleges that still factor the scores in do just that, factor them in w. all the other info on your application. This is 4 yr program. Two-year degree (Associate of Arts=AA) is less rigorous.
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What grade are you in now?