Please answer a and b

11) A car drives at 35 muh for 5.0 seconds, then slows down at a constant deceleration of magnitude 0.6 m/s' for 10 0 s a) (6p) Convert the initial speed to mis. Draw the velocity versus time graph for the motion of the car, Indicate the scale for each axis. 1 mi & 1609 m b) (6p) Calculate the displacement of the car during the entire 15.0 s of this motion