title: how to return a double rounded to tenths
body: <p>I am trying to return a double so that it rounds up to the tenths. I have:</p>
  
  <pre><code> roundedTemp = (double)Math.round(tempNum *10)/10;
   return roundedTemp;
  </code></pre>
  
  <p>What am I doing wrong? I get it back to 2 decimal places...</p>