Suppose the dollar interest rate and the pound sterling interest rate are the same, 5 percent per year. What is the relation between the current equilibrium $/ exchange rate and its expected future level?

Suppose the expected future $/ exchange rate, $2 per pound, remains constant as Britains interest rate rises to 10 percent per year. If the U.S. interest rate also remains constant, what is the new equilibrium $/ exchange rate?

It's International Finance, please give detailed answers for both paragraphs!