b) If the present value of US$150 paid at the end of one year is US$130, what is the one year c) An investment costs US$1,548 and pays US$138 in perpetuity. If the interest rate is d)If cost of capital is 9 percent, what is the PV of US$374 paid in year 9? discount factor? What is the discount rate? percent, what is the NPV