You have invested 20 per cent of your portfolio in Homer, Ltd., 40 per cent in Marge Co., and 20 per cent in Bart Resources. What is the expected return of your portfolio if Homer, Marge, and Bart have expected returns of 2 per cent, 18 per cent, and 3 per cent, respectively?
| 8.7% |
| 7.7% |
| 8.2% |
| 9.2% |
