Add punctuation: Casey said he did not have any doubts about a video gambling mall and even has drawn a promise from the landlord for a hiring fulltime duty security officer for a patrol rationale
A: Casey said he did not have any doubts about a video gambling mall and even has drawn a promise from the landlord for a hiring full-time duty, security officer for a patrol rationale.

Add punctuation: Af second funktioner can devote their cos tan
A: Af second funktioner can devote their(), cos(), tan().

Add punctuation: For example in a paintmanufacturing process it is desirable to manufacture lighter colours first and darker colours later
A:
For example, in a paint-manufacturing process it is desirable to manufacture lighter colours first and darker colours later.