If the 1-year U.S. Treasury bill rate is 7.0 percent, the spot rate between U.S. dollars and

Question:

If the 1-year U.S. Treasury bill rate is 7.0 percent, the spot rate between U.S. dollars and British pounds is £1 = $1.69, and the 90-day forward rate is £1 = $1.68, what rate of interest is expected on British Treasury bills, assuming that interest rate parity between the dollar and pound exists?