Article writers urgently needed!

I urgently need article writers who are good both in research and writing. My rate is $0.5 for a 400-word article. I have plans of making this higher if the writers I chose exhibit very good performances. $30 bids are the only ones which will be accepted. Since this one is urgent, I want every bidder to attach any sample articles of any length. I just want to check your English proficiency. In placing your bid, please include the number of articles you can write in a day. Thank you! This is urgent.