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5. A young couple would like to add another bathroom to their starter home and anticipate in 5 years it will cost $10,000. What amount invested at the end of each year at 10 percent annually will grow to $10,000 at the end of 5 years? 6. Suppose you have the opportunity to make an investment in a real estate venture that expects to pay investors $750 at the end of each month for the next eight years. You believe that a reasonable return on your investment should be an annual rate of 15 percent compounded monthly. How much should you pay for the investment? 7. A seller sold his house for $240,000, which was 92 percent of the list price. What did the house list for? 8. A buyer purchased her home for $250,000. She sold it a year later for $281,250. What percentage profit did she realize on her investment? 9. An office building was purchased for $220,000. Of the total value, 25 percent is attributed to the land. Find the annual depreciation and the property's book value after 4 years