Thanks for the opportunity to bid on this project. I provide clear and effective writing, editing and marketing services for business clients.
I must tell you that I am not aware of any native-English writer who could meet your pricing request for $1 per 400 words; frankly, your own English skills appear to be worth somewhat more.
For $54, that is $18 per hour for three hours, I offer 3 well-researched, flawlessly-written articles regarding your selected topics, with each article containing at least 400 words, all chosen to inform, engage and entertain readers.
Please see my accompanying generic sample article, written for an attorney's website. I'm certain I can meet your specific requirements.
Thanks again for the opportunity to bid on this project!
Ed