The first 3 people arrive at a party. several more people come, and now there are 14 people at the party. how many people arrived after the first three people?

Evaluate cos2θ for cosθ = square root of 3/2

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

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?