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Mathematics 9 Online
OpenStudy (anonymous):

From 1960 to 1970, the consumer price index (CPI) increased from 29.6 to 38.8. If a macaroni and cheese dinner cost $0.37 in 1960 and the price of macaroni and cheese increased at the same rate as the CPI from 1960 to 1970, by approximately how much did the price of a macaroni and cheese dinner increase from 1960 to 1970? A. $0.39 B. $0.30 C. $0.12 D. $0.49

OpenStudy (anonymous):

B

OpenStudy (anonymous):

that was incorrect

OpenStudy (anonymous):

Im so sorry, I had a different percentage :(

OpenStudy (anonymous):

Answer: C. 12%

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