The Mayor shall serve as the presiding officer at all meetings of Council. If both the Mayor and Recorder are absent, then a member of Council, selected by a majority of the members present shall preside. A quorum, consisting of a majority of the members of Council must be present in order to transact business. No member of Council shall vote upon any ordinance, order, measure, resolution, or proposition, in which he or she may be interested in other than as a citizen of the Municipality. (1978 Code Sec. 2-2)