macro problem

<p><a href="http://apcentral.collegeboard.com/apc/public/repository/ap09_frq_macroeconomics.pdf%5B/url%5D"&gt;http://apcentral.collegeboard.com/apc/public/repository/ap09_frq_macroeconomics.pdf&lt;/a&gt;&lt;/p>

<p>can someone explain question 1 part f?
thx</p>

<p>bump bummp bu,p</p>