calculate with PV, FV, PMT, I/Y, and N as needed! thanks

15. A bond had a price of $946.19 at the beginning of the year and a price of $980.30 at the end of the year. The bond's par value is $1,000 and its coupon rate is 5.4 percent. What was the percentage return on the bond for the year? 16. A portfolio consists of $13,800 in Stock M and $19,900 invested in Stock N. The expected return on these stocks is 8.20 percent and 11.80 percent, respectively. What is the expected return on the portfolio