Hi, can't decide on a major or college? Help me out!

<p>I'm in the 12th grade right now,i.e I'll be giving the boards next year. I gave my SATs this Jan, and got a score of 2160- 650 CR, 770 Math, 740 Writing. Will retake them in June this year.
Anyway, I don't know what major to choose- Pure Maths or Applied Maths. Moreover, I wanted to minor in Astronomy. Some forums say that Applied maths is great for getting a job later, but I really don't know if I'll want a job straight out of university.
Keeping my academic records( great in 9th and 10th, okayish in 11th, though I stood at the 4th position), extracurriculars( not great,not great at all), recommendations(yeah, those are definitely gonna be kickass-my teachers love me), and financial aid(will need some of it) in mind, could you suggest some universities/ LACs?
Also, what's it gonna take to get accepted into a major ivy league/any other good university?</p>