Suppose the Japanese yen exchange rate is 78 rate is 1=$162. $1, and the British pound exchange a. What is the cross-rate in terms of yen per pound? (Round your answer to 2 decimal places, e.g., 32.16.) b. Suppose the cross-rate is 130 1. What is the arbitrage profit per dollar used? (Do not round Intermediate calculations and round your answer to 4 decimal places, e.g., 32.1616.) Cross-rate a. b. Arbitrage profit