Solve the problem.The population P of a predator mammal depends upon the number x of a smaller animal that is its primary food source. The population s of the smaller animal depends upon the amount a of a certain plant that is its primary food source. If 
and 
what is the relationship between the predator mammal and the plant food source?
A. P(s(a)) = 9a + 10
B. P(s(a)) = 27a2 + 90a + 80
C. P(s(a)) = 9a2 + 30a + 30
D. P(s(a)) = 27a2 + 45a + 80
Answer: B
Mathematics
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