\documentclass[leqno,12pt]{article}

% Allows the use of graphics, fixes the margins
\usepackage{graphicx, fullpage}

% Prevents aux files from being created
\nofiles

% Prevents the pages from being numbered
\pagestyle{empty}

\begin{document}
\vspace*{-1in}
\centerline{\includegraphics{MathLetterhead.jpg}}

% Adjust this if you want text to start at a different height on the page
\vspace*{-8.5 in}

Text goes here.

\end{document}