Answer:
0.1325
Explanation:
Weight of the first stock (w1) = .25
Weight of the second stock (w2) = .75
Expected return for the first stock (E(R1)) = .08
Expected return for the second stock (E(R2)) = .15
The expected return of the portfolio is given by the weighted average of the expected return of each stock:

The portfolio expected return, E(Rp), is 0.1325