15. The price of a gallon of gasoline was 50.35 in 1912 when the CPI equaled 0.413. The cost of a gallon of gasoline was 52.25 in 20-05 when the CPI equaled 1.63. {a} The real cost of a gallon of gasoline in 19?? was lb] The real cost of a gallon of gasoline in 2005 was