I am working on a project where I have to monitor Vehicle fuel levels using an ADC of a micro controller. My fuel signal is a 0-12V signal & my 10 bit ADC is 0-3.6V range. I have 2 questions :-

1. Is only putting resistor divider for 0-12V to 0-3.6V sufficient? Do I need to take care of anything else here?
2. How do I calculate resolution of 10 bit ADC after I drop down the voltage as mentioned in point 1 using a divider circuit?