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Mathematics 10 Online
OpenStudy (anonymous):

Anna has been studying a type of bacteria that triples every month. Originally, there were 4 bacterial cells. She wants to know how many there will be after 15 months. Which equation should she use? a15 = 4(3)(15) a15 = 4(3)15 a15 = 4(3)15 − 1 a15 = 4(3)(15 − 1) @perl @DarkBlueChocobo

OpenStudy (anonymous):

I think it is the second one.

OpenStudy (perl):

|dw:1381934433803:dw|

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