Posted by victoria on Tuesday, March 11, 2014 at 2:00am.
5 x 3^n
a)15,30,45,60
b)5,15,45,135
c)0,15,45,135
d)15,45,135,405

math  Steve, Tuesday, March 11, 2014 at 5:03am
3^n: 1,3,9,27
so, which is 5 times that?
Hint: only one sequence starts with 5
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