On the thirteenth day after the election, the school board shall meet to canvass all election returns and shall declare the result of an election and, in the case of a tie, within three days from the determination of a winner. However, if the election is held under an agreement with a city or    county pursuant to sections 15.1-09-22 and 15.1-09-24, the returns must be canvassed and the winners declared as set out in the agreement. The individual receiving the highest number of votes for an office must be declared elected. The board shall record the result of the election.