The price of a gallon of gasoline was $0.35 in 1972 when the CPI equaled 0.418.The cost of a gallon of gasoline was $2.25 in 2005 when the CPI equaled 1.68.The real cost of a gallon of gasoline between 1972 and 2005:
A)increased.
B)decreased.
C)remained constant.
D)may have either increased or decreaseD.The real cost of gasoline increased from $.84 per gallon ($0.35 / 0.418) in 1972 to $1.34 ($2.25 / 1.68) in 2005.

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The Answer of The price of a gallon of gasoline was $0.35 in 1972 when the CPI equaled 0.418.The cost of a gallon of gasoline was $2.25 in 2005 when the CPI equaled 1.68.The real cost of a gallon of gasoline between 1972 and 2005:
A)increased.
B)decreased.
C)remained constant.
D)may have either increased or decreaseD.The real cost of gasoline increased from $.84 per gallon ($0.35 / 0.418) in 1972 to $1.34 ($2.25 / 1.68) in 2005.

The Price of a Gallon of Gasoline Was $0