Answer:
c. the firm's expected rate of return is 9.90%
Explanation:
Consider the following formula to calculate the expected return
Expected return = Sum of (Probability * Expected return)
= 50%*0.25 + 30%*0.10 + 20%*-0.28
= 0.125+0.03-0.056
= 0.099 or 9.9%