Two customers order products from a firm with a published fill rate of 95%. One customer places five orders and experiences an order fill rate of 100%. The second customer also places five orders but experiences an order fill rate of 80%. The firm has an actual order fill rate of .

Your subscription to investing wisely weekly is about to expire. you plan to subscribe to the magazine for the rest of your life, and you can renew it by paying $85 annually, beginning immediately, or you can get a lifetime subscription for $620, also payable immediately. assuming that you can earn 6.0% on your funds and that the annual renewal rate will remain constant, how many years must you live to make the lifetime subscription the better buy?