Suppose the 1-year risk-free rate of return in the US is 6.6% and the 1-year risk-free rate of retum in Britain is 7%. The current exchange rate is 1 pound = U.S. 51.65. A 1-year future exchange rate of for the pound would make a US. Investor indifferent between investing in the US, security and Investing in the British security Calculate your answer to four decimal places