Please answer these three. I've tried and can't get it. The correct answers are given in red.

3. A U.S. investor can earn a 2% interest rate in Japan or 6% in the U.S. The spot exhange rate is 120 yen to the dollar. At what forward rate, dollars per yen, would the investor be indifferent between the U.S. and Japanese investments? (Hint: Interest Rate Parity) (5 pts.) $0.00860 131A 4. At the beginning of the year the exchange rate between the Brazilian Real (RS) and the U.S. dollar is 2 Reals per dollar. Over the year Brazilian inflation is 18% and U.S. inflation is 4%. What should the exchange rate be (dollars per Rea) at the end of the year? (Hint: Purchasing Power Parity) (5 pts.) $0.44/BRL 5. Assume the following bid and ask rates of a Singapore dollar for two banks as shown below: Bid Ask $0.41 Bank X S0.40 $0.425 Bank Y $0.42 Given this information, what would be your gain you use $1,000,000 and execute locational arbitrage? (5 pts) $24.390