\documentclass{article}
\iffalse
 %\setlength{\textheight}{9in}
 \setlength{\topmargin}{0in}
 \setlength{\headheight}{0in}
 \setlength{\topsep}{0in}
 \setlength{\marginparwidth}{0in}
 \setlength{\marginparsep}{0in}
 \setlength{\oddsidemargin}{0in}
 \setlength{\evensidemargin}{0in}
 %\setlength{\textwidth}{6in}
 %\setlength{\parskip}{4pt}
 \setlength{\parindent}{0pt}
\fi
%\usepackage{alltt}
%\usepackage{hyperref}
\usepackage{pdfpages}
\begin{document}
\includepdf[pages=-]{./quiz1/quiz1Sample.pdf}
\includepdf[pages=-]{./quiz1/quiz1SampleSolutions.pdf}
\includepdf[pages=-]{./quiz2/quiz2-sample.pdf}
\includepdf[pages=-]{./quiz2/quiz2-sample-solutions-plus-maple.pdf}
\includepdf[pages=-]{./quiz3/quiz3-sample.pdf}
\includepdf[pages=-]{./quiz3/quiz3-sample-solutions.pdf}
\includepdf[pages=-]{./quiz4/quiz4-sample.pdf}
\includepdf[pages=-]{./quiz4/quiz4-sample-solutions.pdf}
\includepdf[pages=-]{./quiz5/quiz5-sample.pdf}
\includepdf[pages=-]{./quiz6/quiz6-sample.pdf}
\includepdf[pages=-]{./quiz6/quiz6-sample-solutions.pdf}
\includepdf[pages=-]{./quiz7/quiz7-sample.pdf}
\includepdf[pages=-]{./quiz7/quiz7-sample-solutions.pdf}
\includepdf[pages=-]{./quiz8/quiz8-sample.pdf}
\includepdf[pages=-]{./quiz9/quiz9-sample.pdf}
\includepdf[pages=-]{./quiz11/quiz11-sample.pdf}
\includepdf[pages=-]{./quiz12/quiz12-sample-solutions.pdf}
\end{document}
