The following table shows a company's annual revenue (in billions of dollars) for 2009 to 2014. Year Period (t) Revenue ($ billions) 2009 1 23.7 2010 N 29.3 2011 3 37.9 2012 4 50.3 2013 5 59.8 2014 6 66.6 (b) Develop a linear trend equation for this time series to forecast revenue (in billions of dollars). (Round your numerical values to three decimal places.) T. - 9.09x + 12.76 x (0) What is the average revenue increase per year (in billions of dollars) that this company has been realizing? (Round your answer to three decimal x billion places.) $8.58 (d) Compute an estimate of this company's revenue (In billions of dollars) for 2015. (Round your answer to two decimal places.) $ 76,85 X billion Submit