title: Query with multiple string with like operator
body: <p>I am new to SQL and I have this question on a homework assignment: "List the ids of customer representatives whose id is under 100 along with the total number of customers that each of these representatives serves in zip codes starting with 9 or 0 (combined)" </p>
  
  <p>SO far I have this code: </p>
  
  <pre><code>SELECT cust_rep, count(cust_nbr) as "CustomerCount"
  FROM customer
  WHERE cust_rep &lt; 100
  GROUP BY cust_rep
  ORDER BY cust_rep;
  </code></pre>
  
  <p>But I do not know how to add in the zip code restriction. Thanks for your help! </p>