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Mathematics 14 Online
OpenStudy (anonymous):

From 1980 to 1990, the consumer price index (CPI) increased from 82.4 to 130.7. If a bottle of dish soap cost $0.74 in 1980 and the price of dish soap increased at the same rate as the CPI from 1980 to 1990, by approximately how much did the price of a bottle of dish soap increase from 1980 to 1990? A. $1.31 B. $0.43 C. $1.17 D. $0.82

OpenStudy (agreene):

I think it will be B. But it has been forever and a day since I did any Economics.

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