just first 2 questions please. didnt mean to upload thaf much

Q1. A futures market transaction has the feature of "marking to market". Explain this concept to a novice, clearly bringing out the concept of settlement price and daily price limit, margin and maintenance margin. You have to use an example to illustrate these concepts. What is the primary purpose of requiring marking-to-market. Q2. Fred has just sold short 3 contracts of May wheat on the CBT. These are 5,000 hushel contracts. The initial deposit is $1,500 per contract with a maintenance margin of $1,200. (a) What is Fred's total initial margin? (b) How much of an increase in the price of wheat is necessary to cause a margin call? Q3. Calculate the return on invested capital on a platinum futures contract for 50 troy ounces when the purchase price is $810.40 per ounce and the sale price is $823.54 per ounce. The initial margin is $2,500. Q4. Suppose you as a US investor own a portfolio of British securities valued at $430,000. The exchange rate is currently at $1=0.67. A currency contract on British pounds. is set at 62,500 pounds. How many contracts must you trade to protect your portfolio from exchange rate risk? The initial margin on the contract is 10%. What is the return on investment if on closing the exchange rate was $1=0.71. (Hint: First you need to decide whether to go long or short.) Q1. A futures market transaction has the feature of "marking to market". Explain this concept to a novice, clearly bringing out the concept of settlement price and daily price limit, margin and maintenance margin. You have to use an example to illustrate these concepts. What is the primary purpose of requiring marking-to-market. Q2. Fred has just sold short 3 contracts of May wheat on the CBT. These are 5,000 hushel contracts. The initial deposit is $1,500 per contract with a maintenance margin of $1,200. (a) What is Fred's total initial margin? (b) How much of an increase in the price of wheat is necessary to cause a margin call? Q3. Calculate the return on invested capital on a platinum futures contract for 50 troy ounces when the purchase price is $810.40 per ounce and the sale price is $823.54 per ounce. The initial margin is $2,500. Q4. Suppose you as a US investor own a portfolio of British securities valued at $430,000. The exchange rate is currently at $1=0.67. A currency contract on British pounds. is set at 62,500 pounds. How many contracts must you trade to protect your portfolio from exchange rate risk? The initial margin on the contract is 10%. What is the return on investment if on closing the exchange rate was $1=0.71. (Hint: First you need to decide whether to go long or short.)