Model Exponential Growth and Decay
Solve $\left( A = A _ { 0 } e ^ { k t } \right)$

question 22

Multiple Choice

Model Exponential Growth and Decay
Solve.
-An endangered species of fish has a population that is decreasing exponentially $\left( A = A _ { 0 } e ^ { k t } \right)$ . The population 9 years ago was 1500 . Today, only 1000 of the fish are alive. Once the population drops below 100 , the situation will be irreversible. When will this happen, according to the model? (Round to the nearest whole year.)

• A) 51 years from today
• B) 52 years from today
• C) 50 years from today
• D) 53 years from today

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