Need asap the mean algebra 2 test score is 81.5, with a standard deviation of 5.1. there are 130 students taking the course. assuming a normally distributed curve, how many students scored between 76.4 and 86.6? remember: you can't have a fraction of a person. round if necessary. (use the percents given by the book: 2.5%, 13.5%, 34%.)

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?