1)

Samuel just purchased one IBM stock share for 5 dollars. IBM stock price has a 20% chance to be 5, a 30% chance to be 22, and a 50% chance to be 11 next year. What is Samuel's expected return (report the return as a decimal number with four decimal places such as 0.0665) from holding the IBM share for one year?

2)

I have a credit card balance of $10000 and my credit card APR is 30%. If each month I only want to pay the minimum payment of $900, how many months will it take me to pay off the balance (keep one decimal place)?

3)

I borrowed a 30-year mortgage loan of $500000 to buy a house. My mortgage rate is 5.2%. What is my monthly mortgage payment (keep two decimal places)?

4)

I borrowed a 30-year mortgage loan of $250000 to buy a house. My mortgage rate is 3.4%. How much money will I still owe the lender 16 years from now after making each monthly payment (keep two decimal places)?

5)

Company A wants to calculate its WACC. It has just issued a 17-year, 8% coupon, non-callable bond at par value. A's current stock price is $36 and A just paid s $0.5 per share dividend. A's dividend payment is expected to grow at a constant rate of 3% a year. A wants to keep a debt-to-capital ratio of 10%. Tax rate is 35%. If A does not have preferred stock and floatation costs, what is its WACC (please report WACC as a decimal number with four decimal places, such as 0.0562)?