Suppose the Japanese yen exchange rate is 80 = $1, and the British pound exchange rate is 1 = $1.64.

a.What is the cross-rate in terms of yen per pound?(Round the final answer to 2 decimal places. Omit / sign in your response.)

Cross-rate/

b.Suppose the cross-rate is 136 = 1. What is the arbitrage profit per dollar used?(Do not round intermediate calculations. Round the final answer to 4 decimal places. Omit $ sign in your response.)

Arbitrage profit$