According to the Canadian Wheat Board, mean western Canadian production of wheat and durum over a 10-year period was 22.45 million tonnes. Assume that the Canadian production of wheat over this period has been approximately uniformly distributed. If the height of this distribution is 7.94million tonnes, what are the values of a and b for this distribution? (Round your answers to 4 decimal places, e.g. 45.7589.)

a =

b =