title: Using link_to in an .erb file, concatenation syntax
body: <ol>
  <li><p>In index.html.erb, I want a link that looks like the following for each college:  <strong>Apply - $25</strong></p></li>
  <li><p>I want the price displayed to change based on the value of college.undergrad_app_fee.</p></li>
  </ol>
  
  <p>This is what I've tried, but it doesn't work. Perhaps there's a special concatenation syntax to combine the explicit 'Apply -' with the price, or I need to escape &lt;%= %> somehow, or there's a special way to do this with link_to?</p>
  
  <pre><code>   &lt;td&gt;&lt;%= link_to 'Apply - ' college.undergrad_app_fee, college.application_url %&gt;&lt;/td&gt;
  </code></pre>