What is the new price $25; 300% increase?

Which of the following are parts of a sphere

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

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?