Pls help I’ll give brainliest

Add the fractions and simplify 1/2+ 1/3

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?

If the probability of an event happening is 65% then the probability this event does not occur?