A majority of the commission shall constitute a quorum for the transaction of business and four affirmative votes shall be necessary to carry a question. (Ord. 2011-07 § 2, 2011; Ord. 2004-15 § 4, 2004; Ord. 93-014 § 6, 1993; Ord. 71-10, 1971. 2004 Code § 2.48.100.)