Add or subtract as indicated.(-6mn + 3mn2 - 3m2n2) + 
A. 4m2n2 + 10m2n + 3mn2 - 15mn
B. -15mn + 13m2n + 4m2n2
C. 2m2n2
D. 3mn + 3mn2 + 10m2n + 4m2n2
Answer: A
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?
whereP(x) denotes the populationxmo from now.
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By how much will the population increase during the next 9 mo?
?
__________
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During the next 16 mo?
?
__________
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