This week in Math we learned about geometric sequences. A geometric sequence is a sequence of numbers where you multiply each number of the sequence by a set number called the common ratio (r) to get the next number.
Ex. 5, 10, 20, 40 …
in this case r=2 because 10/5=2 and also 40/20=2
to find any term in a geometric sequence we use this formula:
So if we wanted to find 
Therefore, 
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