title: Doing Math in Multiple Javascript Functions
body: <p>I'm new to the Javascript world and trying to figure out this assignment my teacher assigned. Here is his description of what is expected:</p>
  
  <ol>
  <li><p>Build a function that will start the program. Please call it start()</p></li>
  <li><p>From the start() function, call a function called getValue()</p></li>
  <li><p>The getValue() function will get a number from the user that will be squared.</p></li>
  <li><p>Also from the start function, call a function called makeSquare()</p></li>
  <li><p>The makeSquare() function will square the number that was received by the user in the getValue() function.</p></li>
  <li><p>Make sure that you display the results of squaring the number inside of the makeSquare() function.</p></li>
  </ol>
  
  <p>Here is what I have so far:</p>
  
  <pre><code>function start() {
  
      getValue();
      getSquare();
  }
  
  function getValue() {
  
      var a = prompt("Number please")
  }
  
  function getSquare() {
  
      var b = Math.pow(a)
      document.write(b)
  }
  
  start()
  </code></pre>
  
  <p>This assignment doesn't have to be working with any HTML tags. I've only got the prompt box to work, nothing else does though. Am I using variables in a way that can't be used?</p>