1. A Company finds that its sales since the company started in 2000 can be modelled by the function s(t) = (20t^2 + 800t + 300) / (8t^2 + 10t + 100), where S is the total sales, in millions of dollars, and t is the number of years since 2000.
(a) Calculate the years when the sales are 9 million, algebraically. (4 marks)
(b) As the years go by, what does the model predict sales will be? Include a sketch in your solution. (2 marks)