Help with form submission

I’m wondering how to add a submit button to my HTML form that redirects you to another site and submits the form at the same time. Thanks!

Here is my current code:

<html>
	<head>
		<title>RSVP Form</title>
	</head>
	<body>
     <a href="sub.html"><form action="mailto:versemanmatt@gmail.com" method="post"></a>
			<p style="font-size:35px ; ">RSVP Form</p>
			<div>
    		<label id="yourname">Please put your first and last name here.</label>
				<br>
    		<input name="name" id="yourname" type="text" required>
 			</div>
    	<br>
    	<br>
    	<div>
    		<p>Will you be attending?</p>
        <br>
    		<label id="yes">Yes</label>
        <input name="choose" type="radio" id="yes" value="yes" required>
        <label id="no">No</label>
        <input name="choose" id="no" type="radio" value="no" required>
    	</div>
    	<br>
    	<br>
    	<div>
    		<label id="number">Please put your phone number here.</label>
        <br>
        <input name="number" id="number" type="number" required>
      </div>
      <br>
      <br>
      <div>
        <label id="email">Please put your email address here.</label>
        <br>
        <input id="email" name="email" type="text">
      </div>
      <br>
      <br>
      <div>
    		<label id="questions">Questions?</label>
        <br>
        <textarea id="questions" name="questions" rows="5" cols="45" maxlength="350"></textarea>
      </div>
      <br>
    	<div>
        <label id="reset">Click To Clear Form.</label>
        <br>
        <input name="reset" id=reset type="reset">
        <br>
        <br>
        <label id="submit">Please submit this form when finished.</label>
        <br>
       <meta http-equiv="refresh"url="sub.html" content="5"><input name="submit" id="submit" type="submit" value="submit" ></meta>
    	</div>
    </form>
	</body>
</html>

hello @mattverseman39684904

you can refer to this link for more hints to get you unstuck;

hope it helps!