1. The data below depict the annual sales amounts for U.S. manufacturing corporations. Year Manufacturing Sales (trillion dollars) 2009 2010 2011 2012 2013 2014 5.11 5.75 6.48 6.67 6.74 6.90 a. Use "years after 2008" as the input variable, and then find a logarithmic model for these data. Round all coefficients using 4-digit rounding. Be sure to give a complete model. b. Use the model to estimate Manufacturing Sales in 2015. 2. a. Using the data set from Problem #1, find a quadratic model for these data. (Note: Give coefficients as they appear on the calculator for this one since they are all given to four digits or fewer.) Be sure to give a complete model. b. Use the model to estimate Manufacturing Sales in 2015. c. Which model (logarithmic or quadratic) appears to give a more reliable result for 2015? Why? 3. Suppose that an investment earns 4.73% interest compounded continuously. Determine the amount of time it would take for the investment to double in size. 4. According to Car and Driver Magazine the average price of a new car rose to $47,077 in December of 2021 due to dramatic rises in price since 2019. Assuming that this price rises at a more normal pace of 4% per year, use the Solver to determine how long it will take for the price of a new car to rise to $60.000 Give the answer to the