How many Grade 12 high school courses do you need to have completed by the midterm to apply to university?

Well, I'm not so sure but here in the United States, or more specifically California I am currently taking four courses. I can apply to any university I want and have. Just keep your grades up for this year and make sure your 10th and 11th grades are eligible for the college or university you wish to apply. You will be fine :). Good luck!