[tex]\bf n^{th}\textit{ term of an arithmetic sequence}\\\\
a_n=a_1+(n-1)d\qquad
\begin{cases}
a_1-\textit{first term}\\
d=\textit{common difference}\\
----------\\
a_1=-3\\
d=2.8\\
n=37
\end{cases}\\\\
-----------------------------\\\\
a_{37}=-3+(37-1)2.8[/tex]
