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Helpppppp In 1972 federal vehicle emission standards allowed 3.4 hydrocarbons released per mile driven. By 2007, the standards allowed 0.8 hydrocarbons per mile driven. What was…

Helpppppp In 1972 federal vehicle emission standards allowed 3.4 hydrocarbons released per mile driven. By 2007, the standards allowed 0.8 hydrocarbons per mile driven. What was…
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Helpppppp

In 1972 federal vehicle emission standards allowed 3.4 hydrocarbons released per mile driven. By 2007, the standards allowed 0.8 hydrocarbons per mile driven. What was the rate of change from 1972 to 2007?

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User Arye Rosenstein
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4 votes
your answer is
0.074
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User Pawel Krakowiak
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