$1.$ Calculate the price of a $8-$yr $8\%$ semiannual bond with a par value of $$100$ and $7\%$ yield to maturity $($interest rate$).$

$2.$ Suppose you own three $(3)$ gold futures contract, where the futures contract size is $100$ oz$.$ Yesterday, the futures price closed at $$1,800$ per oz$.$ Today, the futures price closes at $1,791.$

Calculate your daily gains of your futures position.