In the general election for governor, the democratic candidate received 48 percent of the vote, the republican received 47 percent of the vote, and the libertarian candidate got 5 percent. what is the outcome of the general election?

Elections are done in order for a certain group of people to select the next set of people that would lead them. 

In this item, we are given that the democratic candidate received 48% of the vote. This is the greatest value among the three. The outcome of the election is that the candidate from democratic governor will win. 

Use the formula: (n-2)×180, where n is the number of sides(18-2)×180= 28800, now this is the full exterior angle of 18-gon so you divide it by 18.28800÷18=160