Suppose the Japanese yen exchange rate is 72.47 = $1, and the British pound exchange rate is 1 = $1.52. a. What is the cross-rate in terms of yen per pound? Note: Do not include the yen sign (). Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16. b. Suppose the cross-rate is 112 = 1. What is the arbitrage profit per dollar? Note: Do not round intermediate calculations and round your answer to 4 decimal places, e.g., 32.1616. a. Cross-rate 110.15 b. Arbitrage profit per dollar $ 1.8456