gray squirrel population was introduced in a certain region 21 years ago. Biologists observe that the population doubles every seven years, and now the population is 680. (a) What was the initial squirrel population? 1 squirrels (b) What is the expected squirrel population,

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A gray squirrel population was introduced in a certain region 21 years ago. Biologists observe that the population doubles every seven years, and now the population is 680.
(a)
What was the initial squirrel population?
1 squirrels
(b)
What is the expected squirrel population, Pt years after introduction?
P(t) =  squirrels
(c)
Estimate the expected squirrel population 10 years from now. (Round your answer to the nearest integer.)
3 squirrels
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