solve the Questions please

Question 28 0 out of 0.5 points The annual risk-free interest rate is 10% in the United States (USD) and 4% in Switzerland (CHF). and the 1-year forward rate is USD CHF 0.80. Today's USD CHF spot rate is closest to: Question 29 1 out of 1 points Spot and one-month forward exchange rates are as follows: Spot 1-month forward EUR/DEF 2.5675 2.5925 EUR/GHI 4.3250 4.2800 EUR/JKL 7.0625 7.0075 Based on these exchange rates, the EUR is closest to a 1-month forward: Question 30 1 out of 1 points The difference between Country D's nominal and real exchange rates with Country F is most closely related to