Suppose the Japanese yon exchange rate is Y74.47=$1, and the British pound exchange rate is 81=$1.54. a. What is the cross-rate in terms of yen per pound? Note: Do not include the yen sign ( X ). Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16 . b. Suppose the cross-rate is 4117=ct. What is the arbitrage profit per dollar? Note: Do not round intermediate calculations and round your answer to 4 decimal places, e.9 32.1616