Internet access to use online banking costs you $39.99 per month. A book of checks costs you $17.95 per 100. Your bank charges you a $.05 per check writing fee for over 5 checks per month. You write an average of 25 checks per month and each one needs a 50 cent stamp. What is your cost difference per month to use online banking vs check writing?

Mr. beautiful, an organization that sells weight training sets, has an ordering cost of $40 for the bb-1 set. (bb-1 stands for body beautiful number 1.) the carrying cost for bb-1 is $5 per set per year. to meet demand, mr. beautiful orders large quantities of bb-1 seven times a year. the stockout cost for bb-1 is estimated to be $50 per set. over the past several years, mr. beautiful has observed the following demand during the lead time for bb-1: demand during lead time probability40 0.150 0.260 0.270 0.280 0.290 0.1total 1.0the reorder point for bb-1 is 60 sets. what level of safety stock should be maintained for bb-1?