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A study by the Environmental Protection Agency looked at the costs and benefits of the Clean Air Act from 1970 to 1990. This study found that a middle-range estimate of health and other benefits of cleaner air were valued at $22 trillion. This amount was about __________________ than the costs of reducing pollution, which was around $500 billion, in the same period.

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Parrain

Answer: d. 44 times higher

Explanation:

The benefits of cleaner air was $22 trillion and the cost of reducing pollution was $500 billion.

The number of times that you would have to multiply this cost of reducing pollution to get to the benefits of cleaner air is:

= 22 trillion / 500 billion

= 22,000 billion / 500 billion

= 44 times higher

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