Am I giving my mom enough money?

My mom is a single mother and before I moved to another state to teach, we bought a home together (she always wanted to be a homeowner). Mortgage is roughly 2900 dollars. I contribute 1000 dollars to the mortgage and 100 for her car insurance. I live on my own and cannot afford to spend more money to help her. The home has 3 bedrooms and I was thinking she could rent them for additional cash. She does work and receives assistance from her boyfriend.

Am I giving my mom enough money?
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