7-8-16. Open meetings--Location and notice requirements--Joint county-municipal planning sessions--Continuances. The board of county commissioners shall hold its sessions as an open meeting and transact all business in a public manner. Meetings shall normally be held at the court house or at the usual place of holding court; however the board may occasionally hold its sessions at any other suitable place at the county seat or at other locations within the geographic county area if the meetings are held in a public place and if notice of the meeting is published once a week for at least two successive weeks before the meeting in the legal newspaper or newspapers of the county in which the meeting is to be held. Joint county-municipal planning sessions may be held at any suitable location within the county. All matters pertaining to the interests of the county shall be heard by the board in session only, but it may continue any business from any regular session to an intermediate day.