In 1990, the world forest cover was 4168 million hectares. In 2010, the world forest cover was 4033 million hectares. Write an exponential decay model in the form y = aekt, which represents the millions of hectares of forest cover in the world t years after 1990. Round k to five decimal places. Enter your answer in the form y-ae^(kt), where a is the initial value and k is your growth rate. (Note: 1 hectare is approximately 2.5 acres.) Type your answer and submit