You have purchased Canada Savings Bonds that will earn 9% interest per year. The total value (A) of the bonds for any given year can be calculated using the formula A - P(1.09)", where P is the initial value of the bonds and n is the number of years the money has been invested. a) Sketch a graph of this relation for an initial value of $500. b) What will be the value of the bonds after 5 years? c) What will be the value of the bonds after 25 years?