Should I repeat a course in college that I got an A- in?

YES IT WOULD BE AN AVERAGE between the A and A-. The average between an A- and a solid A is 3.85. The A- alone is 3.7 GPA. The only time your first grade would be canceled under repeat and cancel is if you earned a C- or lower and then retook it and got a better grade. However, this isn't the cl here. Anyways don't repeat it, that just ridiculous. You got an A-, just take it and move on.