She leased a 2015 Honda Civic, which has a rated fuel economy of 31 MPG.
Assuming she gets the rated gas mileage from her civic, she's buying 24 gallons of gasoline per week for 2.39 [1] per, costing her $57.
AAA gives an estimated 5.51 cents per mile for maintenance and tires [2], costing her $41.
So, take home pay after expenses is $604 - $160 - $57 - $41 = $346, or $12.3/hr.
IANAA, so I don't know which of these expenses qualify for deductions when she files. But an annual pay (after expenses) of $17,992 doesn't leave much wiggle room for paying for an accountant, assuming Uber indentured servitude is her only income generating activity.
0. http://infinitemonkeycorps.net/projects/cityspeed/
1. http://www.losangelesgasprices.com/
2. http://exchange.aaa.com/wp-content/uploads/2016/04/2016-YDC-...