(a) If this chapter requires that notice of a hearing or an election be given, the entity responsible for giving notice shall:
(1) publish notice at least twice, with an interval of at least seven days between the publication dates, in a newspaper or other publication of general circulation within the appropriate area; and
(2) post notice for at least two weeks at a reasonable number of conspicuous places within the appropriate area, including, if possible, public places where it is customary to post notices concerning county or municipal affairs generally.
(b) A hearing for which notice is given under this section and which is held at the time and place designated in the notice may be adjourned from time to time without renewing notice for the adjourned dates.

(c) If notice of an election is given substantially in accordance with this section and the election is fairly conducted, an informality in the conduct of the election or in any matter relating to the election does not invalidate the election or its result.