Project A has an initial cost of $75,000 and annual cash flows of $33,000 for three years. Project B costs $60,000 and has cash flows of $25,000, $30,000, and $25,000 for Years 1 to 3, respectively. Projects A and B are mutually exclusive. The incremental IRR is and if the required rate is higher than the crossover rate then Project should be accepted.

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?