I'm looking to do homework in LaTeX. I'd like the format to be as follows: A simple enumerated list of the answers (with simple numbers on the same line, not section markers) with a heading on the top right corner of the first page only. I'd also like smaller margins and 12pt font. The list, the margins, and the font I've taken care of with
\documentclass[a4paper, 12pt]{article}
\usepackage{enumitem}
\usepackage{fullpage}
\begin{document}
\begin{enumerate}
\item[1.] Here is some text. $$f(x+h) = f(x) + f'(x)h + o(h).$$
\end{enumerate}
\end{document}
I'm now trying to figure out how to get a heading in the upper right hand corner of the first page. I searched through old answers on the site with no success.

\[…\]preferable to$$? – Werner Mar 26 '14 at 18:05alignanyway. – Eric Auld Mar 26 '14 at 18:15