surfergirl2 surfergirl2

24-11-2017
Mathematics

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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?

Respuesta :

hcook93 hcook93

25-11-2017

your answer is
0.074

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