Suppose the current exchange rate between the British pound and the U.S. dollar is .75 pounds per dollar. Assume that the annual inflation rate in Britain is 2% per year over the next 20 years and the annual inflation rate in the U.S. is 6% per year over the next 20 years. If purchasing parity holds at all times, what will be the exchange rate 20 years from now? Show how you got your answer.