6. Steve Brickson currently has an investment portfolio that contains four stocks with a total value equal to $80,000. The portfolio has a beta (b) equal to 1.7. Steve wants to invest an additional $20,000 in a stock that has b = 3.2. After Steve adds the new stock to his portfolio, what will be the portfolio's beta? 7. In the spot market, 1 U.S. dollar equals 1.945 Canadian dollars. 6-month Canadian securities have an annualized return of 9.15 percent. 6-month U.S. securities have an annualized return of 9.65 percent. If interest rate parity holds, what is the U.S. dollar-Canadian dollar exchange rate in the 180-day forward market?