(Future and present value using a caiculator) In 2019 , Bill Gates was worth about $28 billion. Let's see what Bill Gates can do with his money in the following problems. pay for Manhattan if the "current natives" want a 5.70 percent annual return on the original $24 purchase price? Could he afford it? annually in order to purchase Seattle in 10 years? 10 years? Mr. Gates's annual withdrawal be in this case? a. How much would Bill have to pay for Manhattan if the "current natives" want a 5.70 percent annual return on the original $24 purchase price? billion (Round to two decimal places.) Could he afford it? (Select from the drop-down menu.) b. How much would Bill have to pay for Manhattan if the "current natives" want a 5.70% return compounded monthly on the original $24 purchase price? billion (Round to two decimal places.) c. How much would Mr. Gates have to invest today at 8 percent compounded annually in order to purchase Seattle for $100 billion in 10 years? billion (Round to two decimal places.) 10 years? \% (Round to two decimal places.) fund beginning a year from his initial investment. How much can Mr. Gates's annual withdrawal be in this case? billion (Round to two decimal places.)