There are several immigrant and non-immigrant visa options at USA and one has to choose the one that is applicable according to the requirements. The passport must be valid for at least six months beyond the end of your intended stay in the US.

Immigration regulations are very strict with respect to working while carrying a student visa. F-1 status, which is the most common status for full-time international students, allows for part time, on-campus employment (fewer than 20 hours per week.) J-1 student status allows for similar employment, with similar restrictions, as long as permission is given by the exchange visitor program sponsor. M-1 visa holders for technical and vocational programs are not permitted to work during the course of their studies.
To get the F-1 visa approved, the student will need to show that he/she has sufficient funds to pay for the first year of study and that you have resources available to cover the rest of your educational program. For an M-1 or J-1 visa, you will need to convince the authorities that you have sufficient funds to pay for all tuition and living costs for your complete stay in the US.