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According to the South Coast Air Quality Management District, the level of nitrogen dioxide, a brown gas that impairs breathing, present in the atmosphere on a certain May day in downtown Los Angeles is approximated by , where A(t) is measured in pollutant standard index and t is measured in hours, with
corresponding to 7 a.m. Find
,
,
.
Saving
The act of setting aside a portion of current income for future use, either by holding the funds in cash or investing them.
Disposable Income
Spendable and savable funds available to households after the deduction of income taxes.
Consumption
The act of using goods and services to satisfy needs and desires, often considered a primary component of an economy's activity.
Disposable Income
The funds left for households to manage spending and saving after income tax calculations.
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