(a)Time to file (1) An appellant must serve and file its opening brief within: (A) 40 days after the record-or the reporter's transcript, after a rule 8.124 election-is filed in the reviewing court; or (B) 70 days after the filing of a rule 8.124 election, if the appeal proceeds without a reporter's transcript. (2) A respondent must serve and file its brief within 30 days after the appellant files its opening brief. (3) An appellant must serve and file its reply brief, if any, within 20 days after