Answer:
Firm A should accept the project beacause it has high required rate of return which means low risk involved.
Step-by-step explanation:
Rate of return = risk free return + Beta ( market risk premium)
Firm A
rate of return = 0.045 + 1.2 (0.07)
= 0.045 + 0.084
= 12.9%
Firm B ;
rate of return = 0.045 + 0.9(0.07)
= 0.045 + 0.063
= 10.8%