On day one, a bacteria colony begins with 20 bacteria and the number of bacteria triples each day. Which explicit equation can b
e used to determine the number of bacteria after n days?
A. a n = 3(20)n
B. a n = 20(3)n
C. a n = 3(20)n – 1
D. a n = 20(3)n – 1
1 answer:
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