finacial system and economy problem ,help me

finacial system and economy problem ,help me
1)Graphically demonstrate what would happen to the exchange rate in each of the following situation:
a) The U.S.trade deficit increases,ceteris paribus
b) Capital inflows increase,ceteris paribus
2)Graph the demand and supply of loanalbe funds.Suppose market has been in an equilibrium.If expectations of inflation increase,ceteris paribus,graphically show what happens to the interest rate,the demand of loanable funds and quantity supplied of loanable funds.
3) Describe the situation of a speculative crisis against a fixed exchange rate (take a financial crisis as an example).What can the central bank do to defend the currency?Why might the alternative of devaluation be preferable?
4) Explain in details the risks faced by the financial intermediaries and the ways to hedge these risks.