%% Math 131, Fall, 2003
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\begin{document}

\noindent\textbf{Name}:\ \vbox{\hrule width 3in}


\begin{center}
\textbf{Holy Cross College, Fall Semester, 2003} \\
\textbf{Math 131, Quiz \#2, Friday, September 12} \\
Professor Hwang \\
\end{center}

\be
\item The sales at Borders bookstores went from \$78~million in~1991
  to \$412~million in~1994. Find an exponential model of the form
  \[
  S = f(t) = S_0\, e^{kt}
  \]
  for Borders' sales, with time measured in years since~1991. Hint:
  In~1994, $t=$?

  \vfil

  \Answer{$S_0=$}\Answer{$k=$}

  \begin{center}
    \hrule
  \end{center}
  
\item Referring to the previous question, assume Borders' sales
  continued to grow at the same rate through the 1990s. At what
  time~$t$ did their sales reach \$1~billion?

\vfil
\Answer{$t=$}

\ee
\eject

\end{document}
