The cost of a first-class postage in 1970 was $0.06 and in year 2013 was $0.46. Determine the average annual rate of increase in the price of postage stamps during the years 1970 to 2013

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Which one of the following statements is true? ddt does not prevent disease from passing from agricultural animals to humans. cost was a major factor in the united states government's decision to ban ddt. many african governments concluded that the potential long-term health effects of ddt were not as serious as the immediate problem of insect control. ddt cannot accumulate in the fat of animals. the ddt ban in the united states has made it very difficult to control agricultural insect pests.