I need this one, who can help me?, please, it’s a quiz

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

Which one is true about the hexagons ?

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?