1 - Native writers required for 50-400 word articles

I need 50 articles - 400 words each to be done within 10 days. Word count: 400 words per article. Must write minimum 5 articles per day. Must pass copyscape Must maintain good quality and articles should be informative. Payment: $1 per article Payment after completing the entire task. no escrow. Only Serious bidders please. Native writers are preferred.