Question 19, 2.4.15-BE HW Score: 74.39%, 16.37 of 22 A Part 1 of 4 points x Points: 0 of 1 Save In 2011 a country's federal receipts (money taken in) totaled $2.22 trillion. In 2013, total federal receipts were $2.88 trillion. Assume that the growth of federal receipts, F, can be modeled by an exponential function and use 2011 as the base year (t = 0). a) Find the growth rate k to six decimal places, and write the exponential function F(t), for total receipts in trillions of dollars. b) Estimate total federal receipts in 2015. When will total federal receipts be $15 trillion