8 Ms. Chavez bought 20 eggs at a market. She will use 30% of these eggs to make cookies. How many eggs will Ms. Chavez use to make cookies?​

How do you use the elimination method for this question? explain, because i really want to understand!

Nikolas calculated the volume of the prism. his work is shown below.

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?