Add punctuation: What are the total employees earnings for department 30
A: What are the total employees earnings for department 30?

Add punctuation: Before you can open a ZLA file youll need to figure out what kind of file the ZLA file extension refers to
A: Before you can open a ZLA file, you'll need to figure out what kind of file the ZLA file extension refers to.

Add punctuation: In order to maintain the humidity for a certain grain growth only a small excess of hydrogen is necessary
A:
In order to maintain the humidity for a certain grain growth, only a small excess of hydrogen is necessary.