Answer:
6.7%
12.7%
7.5%
Step-by-step explanation:
Required rate of return = risk free rate + ( stock beta × Markert premium)
When beta = 0.8
The required rate of return = 3.5% + (4% × 0.8) = 6.7%
When beta = 2.3
The required rate of return = 3.5% + (4% × 2.3) = 12.7%
The required rate of return on the market:
3.5% + (4%×1) = 7.5%
I hope my answer helps you.