Arvin Australian Imports has agreed to purchase 10,000 cases of Australian wine for 5 million Australian dollars at today's spot rate. The firm's financial manager, Sarah Vintnor, has noted the following current spot and forward rates: U.S. Dollar/Australian Australian Dollar/U.S. Dollar Dollar Spot 0.7921 1.2625 0.7911 1.2641 30-day forward 90-day forward 180-day forward 0.7897 1.2663 0.7885 1.2682 On the same day, Vintnor agrees to purchase 10,000 more cases of wine in 3 months at the same price of 5 million Australian dollars. a. What is the price of the wine in U.S. dollars if it is purchased at today's spot rate? Round your answer to the nearest cent. b. What is the cost in U.S. dollars of the second 10,000 cases if payment is made in 90 days and the spot rate at that time equals today's 90-day forward rate? Round your answer to the nearest cent. c. If the exchange rate for the Australian dollar is 1.2 to $1 in 90 days, how much will Vintnor have to pay for the wine (in U.S. dollars)? Round your answer to the nearest cent