What college are you applying to? Since you said computers/engineering im going to assume CSE and Carlson for business. Those colleges have an average of about 1400 for their sat so you’re going to have to retake that if you want any shot at those or any college within the system at all. What is your class rank? Carlson/CSE are usually hovering around the 90th percentile class rank for the middle 50% acceptances
Lack of class rank won’t hurt you. Many schools (including those in MN) don’t do class rank. CSE and CSOM are pretty selective. Here are the stats of admitted students by college: