The annual demand for an item is 20,000 units. The cost to process an order is $25 and the annual inventory holding cost is $4 per item per year. Given the following price-quantity breaks for purchasing the item: Quantity Price 1-1,999 $2.50 per unit 2,000 or more $2.30 per unit What is the quantity you will order each time? Please provide detailed calculation of the total cost (including inventory cost and purchasing cost) for each quantity discount scenario

Because of the violent nature of the sport, professional american football players are at risk of suffering concussions (or brain injuries) during the violent collisions that occur between players during the game. violent collisions involving hits to the head are particularly risky. suppose the commissioner of the national football league (nfl) institutes a rule requiring players to wear a new, lighter helmet that is designed to reduce head trauma during collisions between players on the field. while the new helmets the probability of a concussion resulting from each individual collision, at the same time the new helmets could also give football players an incentive to play more , which could potentially the amount of violent collisions and thus the number of concussions suffered by nfl players, all else equal.