Dave found that about 8/9 of the students in his class have a cell phone. what percent of the students in his class do not have a cell phone? write your answer as a percent and as a decimal. show work.

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?