please help

17. The FI is acting as a FX market agent for its customers when it: a) buys or sells currency to balance its net exposure to FX. b) takes a nonzero net position in a particular currency. c) takes speculative or hedging positions for itself on FX d) processes an exporter's transaction in a foreign currency for a fee. e) makes a market in its domestic currency. 18. If DEAR for a portfolio is estimated to be - $13,528,700, and daily returns are independently distributed. Which of the following is true? a) the 10-day VaR will be of the 20-day VAR. b) the 10-day VaR will be less than 1/3 of the 30-day VAR c) the 10-day VaR will be approximately -S135,287,000 d) the 10-day VaR will be approximately -$91,706,000 e) the 10-day VaR will be approximately -S42,781,500 19. Consider the following two Fis: Company Q has $125 billion in total assets and total costs equal to $25 billion. Company S has $15 billion in total assets and total costs equal to $3 billion (AC average costs): Which of the following is true? a. The AC is $0.40 for and $2.50 for S. b. There are significant scale economies because both Q and S coexist. c. There are significant scale economies because the larger FI has a lower AC. d. There are significant scale diseconomies because unit costs increase with size. e. The AC is the same for the two Fls. 20. Suppose bank optimal size decisions are based on costs. If the average cost curve is flat, one can expect that the banking industry will be populated with: a. banks of the same size b. banks which are all very large c. one bank (natural monopoly) d. banks of all sizes e. banks which are all small