What would you pay for a stock that pays a $5 dividend, forever, if it's expected return is 18%, and the company pays out 100% of it's earnings as a dividend?

If a firm pays a $8 dividend in year 1, and that firm pays out half of it's earnings as dividends, while it's ROE is 10%, what would the price of the dividend in year 5 be?

How much would you pay today for a stock that will pay a $3 dividend in year 1, a $2 dividend in year 2 and a $5 dividend in year three, assuming you will sell the stock at the end of year three for $80? Assume an expected return of 5% for the stock.

How much would an investor expect to pay for a $1,000 par value bond with a 6% annual coupon that matures in 15 years if the interest rate is 8%?