In 1950 Canada had a population of 14.0 million and it was growing at 2.2% a year. Assume no net migration. (10 points total)

a. In about how many years will it take for the Canadian population to double? (5 points)

b. In 2000 Canadian population was 30.7 million. Calculate the average annual growth rate of the population over this half century. (5 points)