which equation of the least squares regression line most closely matches the data set? y=1.03z-56 y=15.3z-25.4 y=0.06z-28 y=15.3z+25.4

Find the value of the variable and the length of each secant segment.

This is so hard and it’s for a test

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?