A) The spot price of gasoline is 258 cents per gallon and the annualized risk free interest rate is 4.0%. Given a lease rate of 1.0%, a continuously paid storage rate of 0.5%, and a convenience yield of 0.75%, what is the no-arbitrage price range of a 1-year forward contract (in cents)? Answer:265.19 to 267.19

B)Nine-month gold futures are trading for $1565 per ounce. The spot price is $1509 per ounce. LIBOR during each of the upcoming 4 quarters is listed as 1.04%, 1.22%, 1.30%, and 1.35%, respectively. Calculate the 9-month lease rate on the futures contract. Answer: 0.0%

I need calculations as I am unable to get to it