Struggling please help.

Question 12 (4 points) Under the theory of purchasing power parity, if U.S. price level rises by 10%, all else constant, the U.S. Dollar appreciates by 10%. none of the answers are correct the Yen depreciates by 10% the U.S. Dollar depreciates by 10% Question 19 (4 points) The real exchange rate is the rate at which goods and services in one country is exchanged for goods and services in another country True False Question 20 (4 points) The forward foreign currency market involves a binding contract to buy a specified amount of foreign currency at a specific future date True False Question 25 (4 points) With futures contracts, the futures exchange rate changes continually as contracts are bought and sold in the futures market continually O true false