9. Bonus: Consider the following 3 securities that pay perpetual cash flows: X: pays $42 every odd month; Y: pays $42 every even month; Z: pays $42 every month. Specifically, we can tabulate the cash flows from X, Y, and Z for the first few months as follows: X Y Z end of end of end of end of end of end of month #1 month #2 month #3 month #4 month #5 month #6 $42 0 $42 0 $42 $0 0 $42 0 $42 0 $42 $42 $42 $42 $42 $42 $42 If X sells for $3610.5 and Y sells for $3589.5, what does it imply about: (a) the price of Z? (b) the interest rate per month? (2 pts)