4 and 5 please

Suppose that you enter into a long contract to buy July silver for $13.61 per ounce on NYMEX. The size of the contract is 5000 ounces. The initial margin is $4,394 per contract, and the maintenance margin is $2,799 per contract. At what price are you going to receive a margin call? Please keep two decimal points and write your answer in dollars (eg, 15.61). Please do not write dollar sign in your answer. Question 5 5 pts It is March 1. AUS company expects to receive 6.4 million British Pound at the end of July. It need to convert British Pound into US dollars and plans to use September British Pound futures to hedge the exchange rate risk. The contract size for British Pound futures is 62500 Pounds per contract. How many contracts does the company need? Round your answer to the nearest integer. (eg. 6.5 rounds up to 7. 6.4 rounds down to 6)