"How do I learn to be a..." / "How do I perform the job of a ..."
Questions should be about problems you are encountering or have encountered in the workplace, and not the learning/applying of specific job functions.
"What salary/hourly rate should I look for? How much should I charge for X?"
Questions regarding salary are too localized to the city, timeframe, job sector and specific skills. Answers to these questions become quickly outdated and just aren't helpful to others.
For general salary hunting tips, see How can I determine a reasonable salary to ask for?