Please help me with all 5 questions.thank you

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According to the Census Bureau, in October 2016, the average house price in the United States was $28,558. 7 years earlier, the average price was $21,508. What was the annual increase in the price of the average house sold? In 1904, the first Putting Green Championship was held. The winner's prize money was $180. In 2016 , the winner's check was $1,162,000. (Do not round intermediate calculations.) a. What was the percentage increase per year in the winner's check over this period? b. If the winner's prize increases at the same rate, what will it be in 2049 ? Imprudential, Incorporated, has an unfunded pension liability of $800 million that must be paid in 23 years. To assess the value of the firm's stock, financial analysts want to discount this liability back to the present. If the relevant discount rate is 7.5 percent, what is the present value of this liability? You have just received notification that you have won the $3 million first prize in the Centennial Lottery. However, the prize will be awarded on your 100th birthday (assuming you're around to collect), 75 years from now. What is the present value of your windfall if the appropriate discount rate is 6 percent? Oour coin collection contains 451943 silver dollars. If your grandparents purchased them or their face value when they were new, how much will your collection be worth when ou retire in 2040, assuming they appreciate at an annual rate of 7 percent