An automobile traveling at 80.0 km/h has tires of 75.0 cm diameter

An automobile traveling at 80.0 km/h has tires of 75.0 cm diameter.

a) What is the angular speed of the tires about their axles?
b) If the car is brought to a stop uniformly in 30.0 complete turns of the tires (without skidding), what is the magnitude of the angular acceleration of the wheels?
c) How far does the car move during the braking?