'range' is correct. There is such a thing as salary or more typically income bracket, but that is used to define a range that has meaning for some other purpose. In the under $40,000/year income bracket, families are entitled to certain benefits. The income tax you pay depends on the salary bracket you're in.

‏أنتم نصابين

Hi Drew. Both sentences are correct because 'range' and 'bracket' are inter-changeable

Yes 

As far as i know the first one is the most commonly used one