Hey yall please help me I suffer from short time memory loss and it's hard for me to focus and remember Find the distance between A and B Round your answer to the nearest hundredth.​

Bring the fraction a/a-4 to a denominator of 16-a^2

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?

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account