College professor offering one-on-one math (algebra, trigonometry), chemistry, and biochemistry tutoring to high school and/or college students, native chinese speaker, very fluent in English, over 20

Details

For chemistry and biology high school level courses, the rate will be $30/hr.
For any college level courses, the rate will be $50/hr.
If I travel to student's house, I will charge a $20 travelling fee per session if the place is within 10 mile of distance.