Código da resolução:
<html>

<head>
  <title>Exercício 4</title>
</head>

<body>
  <h1>Lista de Inscritos</h1>

  <table>
    <thead>
      <tr>
        <th>ID</th>
        <th>Nome</th>
        <th>Idade</th>
        <th>Cargo</th>
        <th>Salário (R$)</th>
        <th>Email</th>
        <th>Telefone</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>1</td>
        <td>João da Silva</td>
        <td>30</td>
        <td>Engenheiro de Software</td>
        <td>7000</td>
        <td>[email protected]</td>
        <td>(11) 98765-4321</td>
      </tr>
      <tr>
        <td>2</td>
        <td>Maria Souza</td>
        <td>25</td>
        <td>Desenvolvedora Front-end Júnior</td>
        <td>4500</td>
        <td>[email protected]</td>
        <td>(21) 99876-5432</td>
      </tr>
      <tr>
        <td>3</td>
        <td>Pedro Oliveira</td>
        <td>35</td>
        <td>Desenvolvedor Full-Stack Júnior</td>
        <td>5500</td>
        <td>[email protected]</td>
        <td>(31) 98765-1234</td>
      </tr>
      <tr>
        <td>4</td>
        <td>Ana Pereira</td>
        <td>28</td>
        <td>Cientista de Dados</td>
        <td>6000</td>
        <td>[email protected]</td>
        <td>(41) 99876-4321</td>
      </tr>
      <tr>
        <td>5</td>
        <td>Lucas Santos</td>
        <td>22</td>
        <td>Estudante</td>
        <td>-</td>
        <td>[email protected]</td>
        <td>(51) 98765-5678</td>
      </tr>
      <tr>
        <td>6</td>
        <td>Mariana Costa</td>
        <td>29</td>
        <td>Desenvolvedora Back-end</td>
        <td>5500</td>
        <td>[email protected]</td>
        <td>(61) 99876-8765</td>
      </tr>
  </table>
  </tbody>
</body>

</html>