Bart has been a successful financial advisor for more than 10 years. During that time, he has generated returns that have never been less than 5% annually. He does not advertise but that has not stopped investors from opening new accounts with his firm. It turns out that Bart has been taking the deposits of new investors, keeping a portion for himself, and sending the reset to earlier investors. Bart is running a(n):

a. telemarketing schemeb. pyramid schemec. ponzi schemed. identity fraud

An allergy products superstore buys 6000 of their most popular model of air filters each year. the price of the air filters is $18. the cost of ordering and receiving shipments is $12 per order. accounting estimates annual carrying costs are 20% of the price. the supplier lead time is 2 days. the store operates 240 days per year. each order is received from the supplier in a single delivery. there are no quantity discounts. what is the store’s minimum total annual cost of placing orders & carrying inventory?