TBB company is an oil company. It has just discovered an oil field and therefore
its dividend is expected to enjoy a growth rate of 7% for 20 years. After that, the
growth rate would reduce to zero. The next dividend is $5 and required rate of
return of TBB is 10%. What should be the price of TBB’s stock? (Hint: PV of a
stock with 7% growth rate forever = PV of a stock with 7% growth rate for 20
years + PV of a stock with 7% growth from year 20 to infinity)

这道题对于我这个初级水平的人来说巨难！！！！请各位高手牛人好心相助！！不胜感激！！！！！！！！