If a certain pollutant decreases in concentration by 25% each year, what will be

Practice Questions

If a certain pollutant decreases in concentration by 25% each year, what will be the concentration after 2 years if the initial concentration is 160 mg/L?

120 mg/L
90 mg/L
80 mg/L
100 mg/L

Questions & Step-by-Step Solutions

If a certain pollutant decreases in concentration by 25% each year, what will be the concentration after 2 years if the initial concentration is 160 mg/L?

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