Suppose that class OrderList has a private attribute double…

Suppose that class OrderList has a private attribute double cost[100] which hold the cost of all ordered items, and a private attributes int num_of_items which hold the number of items ordered. For example, if num_of_items is 5, then cost[0], cost[1], …, cost[4] hold the cost of these 5 items. Implement the member function named average_cost which returns the average cost of this OrderList.

Rankin Corp. common stock is priced at $74.20 per share. The…

Rankin Corp. common stock is priced at $74.20 per share. The company just paid its $1.00 quarterly dividend. Continuously compounded risk-free rate is 6.0%. A $70.00 strike European call, maturing in 6 months, sells for $6.50. How much arbitrage profit/loss is made by shorting the $70.00 strike European put also maturing in 6 months, which is priced at $2.50?