Can I group numbers -- instead of spelling them out -- for ease of reading?<br/><br/>Do you agree with all my examples?<br/><ul><li>The conversation lasted anywhere from 5 to 15 minutes.</li><li>It was a 5- to 15-minute conversation.</li><li>OR: It was a 5 to 15 minute conversation (no hyphens).</li></ul>Thank you very much.