PLEASE HELP ME WITH THE CALCULATIONS. I DONT UNDERSTAND HOW TO FIND THE SOLUTIONS

1. You purchase a long put option giving you the right to sell 100 shares of Bohm Corporation for a premium of $2,400.The strike price of the option is $100 and the final stock price is $10.What is your profit or loss?
2. You have a short put option giving the purchaser the right to sell 100 shares of Rothbard Corporation for a premium of $4,100.The strike price of the option is $30 and the final stock price is $85.What is your profit or loss?
3. A call option has a strike price of 70 in dollars, and a time to expiration of 0.7 in years.If the stock is trading for 19 dollars, N(d1) = 0.5, N(d2) = 0.4, and the risk free rate is0.04, what is the value of the call option?
4. You purchase a long call option giving you the right to buy 100 shares of Mises Corporation for a total premium of $1,400.The strike price on the option is $10 and the final stock price is $85.What is your profit or loss?