In 1982 the inflation rate hit 16%. Suppose that the average cost of a textbook in 1982 was $15. What was the expected cost in the year 2017 if we project this rate of inflation on the cost? (Assume continuous compounding. Round your answer to the nearest cent.) $ 4056.4 If the average cost of a textbook in 2012 was $135, what is the actual inflation rate (rounded to the nearest tenth percent)? x %