foreign interest rate

From the differential formulas (9.3.14) and (9.3.15) for the stock and discounted exchange rate in terms of the Brownian motions under the domestic risk-neutral measure, derive the differential formulas (9.3.22) and (9.3.23) for the redenominated money market account and stock discounted at the foreign interest rate and written in terms of the Brownian motions under the foreign risk-neutral measure.