Answer:
18.38% and 13.2%
Explanation:
As we know that
Expected rate of return = Risk-free rate of return + Beta × (Market rate of return - Risk-free rate of return)
So for Discount store, it is
= 5.8% + 1.7 × 7.4%
= 5.8% + 12.58%
= 18.38%
And for everything store, it is
= 5.8% + 1.0 × 7.4%
= 5.8% + 7.4%
= 13.2%
The Market rate of return - Risk-free rate of return) is also known as the market risk premium and the same is applied.