Am struggling to understand the concept.

Jack want to invest into the Castrol Bond. It is a perpetuity that has a face value of $1,000. With the current interest rates of 6.5%, what would the duration of the bond be: 1) 16.4 years 2)6.1 years 3) 153.8 years 4) Indeterminable Apple is forecasting a dividend of $3.00 per share next year. A plowback ratio of 40%, investments that generate a return on equity of 18%. If investors require a 12% return on Apple stock a) What would be the current price of Apple's stock? b) How much would that value represent the Present Value of Growth Opportunities