please help :/ struggling so much

A stock with a current price of $63 has a call option available with a strike price of $65. The stock will move up by a factor of.90 or down by a factor of.65 each period for the next two periods and the risk-free rate is 2.6 percent. What is the price of the call option today? Price of the call option A stock is currently priced at $40 and will move up by a factor of 1.31 or down by a factor of .89 each period over each of the next two periods. The risk-free rate of interest is 3 percent. What is the value of a put option with a strike price of $50? (Do not round intermediate calculations. Round your answer to 2 decimal places.) Value of a put option