a:1:{i:0;a:13:{s:2:"id";s:3:"753";s:7:"answer1";s:213:"<p><span style="text-decoration: line-through;"><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=S%3D(4%2C-1)%2C%20r%3D3" alt="S=(4,-1), r=3" /></span></p>";s:7:"answer2";s:161:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=S%3D(4%2C-1)%2C%20r%3D9" alt="S=(4,-1), r=9" /></p>";s:7:"answer3";s:161:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=S%3D(-4%2C1)%2C%20r%3D3" alt="S=(-4,1), r=3" /></p>";s:7:"answer4";s:161:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=S%3D(-4%2C1)%2C%20r%3D9" alt="S=(-4,1), r=9" /></p>";s:7:"answer5";s:0:"";s:7:"answer6";s:0:"";s:7:"answer7";s:0:"";s:7:"answer8";s:0:"";s:7:"answer9";s:0:"";s:8:"answer10";s:0:"";s:4:"good";s:10:"1000000000";s:8:"question";s:4:"2013";}}