You probably know that your grades are important. While an upward trend is good, your grades are not outstanding. That said, you don’t indicate what classes you are taking. Obviously AP classes, advanced math, rigorous, college prep classes are essential to being seriously considered. Your SAT is good. Quality is probably more important than quantity for ECs; visiting Africa doesn’t really ‘count’ but varsity cheerleading and being Editor-in-Chief of the newspaper is good. Good luck.