Question 1093712: 4,5,15,45,135,405
Answer by addingup(3677)   (Show Source):
You can put this solution on YOUR website! so you have a geometric sequence and it goes like this:
5 x 3 = 15
15 x 3 = 45
45 x 3 = 135
135 x 3 = 405
go ahead, calculate the numbers that follow.
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By the way, what's that number 4 you have at the beginning of the sequence? It doesn't belong there.
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