I'm going to my boss because I suspect my co-worker isn't showing up for work
How often does you co-worker not show up for work?
She was absent for two consecutive days, so my boss, management and everyone else wants to know why.
Bring this to your boss's attention because your co-worker's work might start trickling into your day-to-day responsibilities and that is not fair to you. It might be a good time to ask about a salary increase if your colleague stops showing up to work.
I just like to be the one to tell on others at work. I don't really care about salary increases. But it sounds like an idea now that you mention it.
Yes, you can mention what you like then ask for a higher position so you are in the spotlight for the increase of wages. Looking out for yourself is not always a problem.