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One number is 2 more than 2 times another. their product is 12. find the numbers? What is the lewis structure for OF? A water supply reservoir has leakage, which kind of glue is effective for it? What kind of bug is this? I was just watching a show in bed and it started crawling on my arm. Also, is it harmful? How do I use de Moivre's formula to evaluate (cos pi/7 + i sin pi/7) ^7 in cartesian form?