Remember that the general formula of an arithmetic sequence is:
[tex]a_n=a_1+d(n-1)[/tex]Where:
• An is the n-term
,• d is the common difference
,• n is the number of the step
Using the given data,
[tex]\begin{gathered} a_{13}=1+6(13-1)\rightarrow a_{13}=1+6(12) \\ \rightarrow a_{13}=73 \end{gathered}[/tex]Therefore, the 13th term of the arithmetic sequence is 73
