Sales tk.10,00,000; Direct cost tk.3,50,000; Municipal tax tk.1,00,000; Cost of Marketing tk.50,000 and Operating profit tk.3,00,000. What is the amount of Cost of goods sold?

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?