Hi Ricardo,
Thanks for writing in. The strategy is entirely up to you -- if it's important that you attend business school in the fall then you can apply for R1 for schools where you will be more competitive, while also preparing to take the test again and apply to more schools if your score goes up. Right now you are below the median GMAT at all of those schools, and with the minimal information I have I could only see rating USC as "competitive." But that doesn't rule the other schools out -- you just need to shift the focus from GMAT to work experience, extracurricular, etc.
Best of luck,
Daniel Richards
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