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If inflation has been running at 3.06% per year and a new car costs $38,600 today, what would it have cost 3 years ago? A car that costs $38,600 today would have cost $3 years ago. (Do not round until the final answer. Then round to the nearest cent as needed.) Find the time it would take for the general level of prices in the economy to double at an average annual inflation rate of 2.2%. What is the appropriate value of i? i= (Type an integer or a decimal.)