I messed up my freshmen year and my sophmore year, but Junior year I got AP classes and maintained a 3.50-3.89 and now for my senior year I got 3 AP classes and so far have a 4.1. DO I have a chance ...

I know I want to go into engineering but if my math subscores on the SAT are lower should I apply as an open major first? Will i have a better chance of getting in a school?

I'm applying to CSU's and UC's do i have any chance in getting accepted into any with a 3.19 gpa and 1300 SAT? Junior year I got A & B's, took AP classes, and senior year doing the same.

I heard that you only have to submit one test score to the school you're applying to but my older brother said he had to submit all of his test scores?