Inequalities invovling Normal Distribution I

Given that \(X\sim N\left( -3,8 \right)\). Find the range of \(k\) for

1. \(\mathrm{P}\left( X>k \right)<0.4\)
2. \(\mathrm{P}\left( X>k \right)>0.65\)
3. \(\mathrm{P}\left( X < k \right)<0.8\)
4. \(\mathrm{P}\left( X<k \right)>0.57\)