Here are answers to the problems on the exams, in various formats.
(They may not look very good on the screen, but should print fine.)
EXAM 1 dvi pdf postscript
EXAM 2 dvi pdf postscript
EXAM 3 dvi pdf postscript
EXAM 4 dvi pdf postscript
And here are the review problems for the exams, in various formats.
REVIEW PROBLEMS FOR EXAM 1 dvi pdf postscript
REVIEW PROBLEMS FOR EXAM 2 dvi pdf postscript
REVIEW PROBLEMS FOR EXAM 3 dvi pdf postscript
REVIEW PROBLEMS FOR EXAM 4 dvi pdf postscript