Assume the total cost of a college education in Agribusiness will be $290,000 when your child enters college in 18 years. You presently have $55,000 to invest. What anmual rate of interest (r) must you earn on your investment to cover the cost of your child's college education? ( 2 points) Problem 5 In January 2012, the average house price in Kansas City was $314,600. In January 2005 , the average price was $200,000. What was the annual increase in selling price? (Hint: calculate r ) ( 2 points)