please answer all 3, they are part of the same question

The expected constant-growth rate of dividends is % for a stock currently priced at $79, that just paid a dividend of $5, and has a required return of 16%? Suppose you purchased a stock a year ago. Today, you receive a dividend of $19 and you sell the stock for $116. If your return was 10%, at what price did you buy the stock? $_ Suppose a bond is priced at $1031, has 19 years remaining until maturity, and has a 7% coupon, paid monthly. What is the amount of the next interest payment (in $ dollars)? $_