(Comprehensive problem) Over the past few years, Microsoft founder Bill Gates' net worth $20 billion and $130 billion. In early 2006 , it was about $26 billion-after he reduced his sta percent to around 14 percent by moving billions into his charitable foundation. Let's see wha his money in the following problems. a. Manhattan's native tribe sold Manhattan Island to Peter Minuit for $24 in 1626 . Now, 387 Gates wants to buy the island from the "current natives." How much would Bill have to pay f "current natives" want a 5 percent annual return on the original $24 purchase price? b. Bill Gates decides to pass on Manhattan and instead plans to buy the city of Seattle, Was 10 years. How much would Bill have to invest today at 8 percent compounded annually in or in 10 years? c. Now assume Bill Gates only wants to invest half his net worth today, $13 billion, in order billion in 10 years. What annual rate of return would he have to earn in order to complete his d. Instead of buying and running large cities, Bill Gates is considering quitting the rigors of th a. The amount Bill would have to pay for Manhattan if the "current natives" wanted a 5 perce original $24 purchase price after 387 years is $ billion. (Round to two decimal places.)