Suppose the Japanese yen exchange rate is 72.47 = $1, and the British pound exchange rate is 1 = $1.52 0. What is the cross-rate in terms of yen per pound? (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? (Do not round intermediate calculations and round your answer to 4 decimal places, e.g., 32.1616.) a. Cross-rate b. Arbitrage profit per dollar