It's definitely tougher with a 2.99 GPA, but cartainly not impossible to get into H/W/K. I don't think that re-taking the GMAT will help much, though. 690 is already very strong. The GMAT shows that you have the intelligence to do well in b-school, but what you will still need to show is that you now have the dedication & discipline to succeed there. The GMAT won't help you with this very much. Your essays and recommendations will!
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