Tim purchased a bounce house one year ago for $6,500. During the year it generated $4,000 in cash flow. If Tim sells the bounce house today, he could receive $6,100 for it. What would be his rate of return (holding period return) under these conditions? Akai has a portfolio of three assets. Find the expected rate of return for the portfolio assuming he invests 50 percent of his money in Wal-Mart with a 10 percent rate of return, 30 percent in Apple with a 20 percent rate of return, and the rest in gold with a 30 percent rate of return. An investment banker has recommended a $100,000 portfolio containing three assets. $20,000 will be invested in the U.S. dollar, with a beta of 1.5; $50,000 will be invested in silver, with a beta of --5; and $30,000 will be invested in Microsoft, with a beta of 0.5. Calculate the weights for each stock in the portfolio and calculate the portfolio beta