The sum of two consecutive odd integers is 236. what is the smaller integer

With this question! what is process of elimination? ? p.s. my brothers acc got banned so add his new one @ yamauchiyamyam17

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount