SOLUTION: what is the fifteenth term in the sequence 1,5,9...?

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Question 574525: what is the fifteenth term in the sequence 1,5,9...?
Answer by chana(69) About Me  (Show Source):
You can put this solution on YOUR website!
it has a formula A +(N-1)D
where A = first term,
N = position of the term wat we need
D = common difference between the terms
15 th term = 1 + (15-1)* 4
=57.