Article writer. $1.50 for 500 words.

Hello, I need an experienced Article writer to write 21 Articles for me. I will provide 7 topics, you will need to write 3 unique articles on each topic. So, there will be 7 sets, 3 Articles in each set. I am willing to pay $4 for each set. Also, I need them done in 2 days maximum. All articles will be of 500 words. There should be same number of paragraphs in every article. So, if you think you can do this place your bid here. I don't care if you are new here as long as you're perfect in English and have at least a bit idea of Article writing. Please only serious bidders. Deserving candidate will have the opportunity for continuous work. Thank you for your time!