Consider a three-factor APT model with non-self-financing factors. The table below provides the expected return for each of the factors as well as the beta of Stock A with each of the factors. According to this model, the expected return for Stock A is 12.7%. Calculate the risk-free rate. Factor Expected Return Beta for A F1 11.8% 0.48 F2 7.4% 1.29 F3 6.1% -0.28 1.37% 1.24% 1.64% 1.51% 1.77%