Here are some basic information related to study in USA
TOEFL IBT
SAT or ACT
Recommendation Letter
Motivation Letter
Direct Application/common application
Early Action & Early Decision: Around November.
Regular Decision: Varies depending on the college.
Most good universities around January/February.
Varies: Average $40,000 - $60,000
Varies. Average $15,000
Very much dependent on which city you live in and your lifestyle.
Ivy League Schools:
Also, Universities like
are equally prestigious
For more detailed information go to this link