At noon (12:00), Annette rented a bicycle to travel around Stanley Park. She returned the bicycle at 4:00 pm (16:00) the same day after travelling 48 km. It cost $22 to rent the bicycle.
a. Determine Annette’s average speed in km/hr.
b. Determine the rental rate in dollars per hour. Round your answer to 2 decimal places.
c. Determine the rental rate in dollars per km. Round your answer to 2 decimal places.