Maxima braking on its own?

I have a 2001 Nissan Maxima with 84,000 miles on it.

I have 2 questions.

1. When I take my foot of the gas pedal and let the car "free wheel" I feel the car is solwing down like If I am gently pressing on the brakes although I am not. What could this be?


2. When I start the car I hear the engine rev up like if my foot was on the gas when I turn the key. It goes back to a normal state state but is that normal to reve up like that?