The function f(x) = 12,900(0.40)^x models the population of ants in a house x days after their discovery. Which statement describes the population of ants? A     The population of ants id decreasing by 60% per day. B     The popualtion of ants is decreasing by 40% per day. C     The popualtion of ants increasing by 60% per day  D     The popualtion of ants increasing 40% per day

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