A baby was born with a weight of 5 pounds and then began to gain 1.25 pounds per month. Write an equation for W, W, in terms of t, t, representing weight, in pounds, of the newborn baby tt months after birth.

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?