Please advice on raising score to 730 from 440 in 19 days.

Thanks for your advice.

On the GMAT practice test prep software, I got 21 questions wrong out of 33 on the Quant section and 14 questions wrong out of 41 on the verbal section. It seems to me that math is my weakness and I need to master the concepts being tested. What do you recommend as the best resource to master the Quant section?

I started off solving the problem solving questions on the OG and watching a video that explained how to solve every single question. I also used the Kaplan GMAT course book to learn the data analysis portion but I didn't finish solving all the data analysis questions. As for the verbal, I reviewed old questions on the OG. I will admit that the last time I really studied for the verbal section was last summer, so I only did the prep software review for the verbal section before taking the practice test.

Thanks,

Ritchell