The fish population in a lake decreases by 2% each year.What is the common ratio?
Answer
A
–0.02
B
–0.98
C
0.02
D
0.98
Explanation
A 2% yearly decrease means the population keeps 100% − 2% = 98% of its size each year. As a decimal, 98% is 0.98, so the common ratio is 0.98, choice D.
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