Asked by aaron
                For an 18 month period, the last term is  and the series sum is .
For a 24 month period, the last term is and the series sum is .
For a 30 month period, the last term is and the series sum is .
            
        For a 24 month period, the last term is and the series sum is .
For a 30 month period, the last term is and the series sum is .
Answers
                    Answered by
            Steve
            
    ever actually read what you posted?
    
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