SOLUTION: how do i write an algebric expression that represent Sn for the sequence {3,6,9,12...} and find the ninth term of this sequence

SOLUTION: how do i write an algebric expression that represent Sn for the sequence {3,6,9,12...} and find the ninth term of this sequence

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Question 387119: how do i write an algebric expression that represent Sn for the sequence {3,6,9,12...} and find the ninth term of this sequence
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
S_n = 3n, as S_1 = 3, S_2 = 6, etc.
S_9 = 3*9 = 27
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