I assume you are involved on 777coin's signature campaign (the only campaign here that accepts newbies other than bitvest.io). You will get a rate of 0.000045 BTC per post with 100 max posts a week. So basically you can earn up to 0.0045 BTC a week with your current rank (not guaranteed bcoz it will depend on your posts quality and quantity).  As your rank gets higher, obviously you will get a better rates per post