please help

The stock market data is given in the following table. The above table provides the correlations among Telmex, a telephone or communication company located in Mexico, the Mexico stock market index, and the world market index, together with the standard deviations (SD) of returns and the expected returns ( R ). The risk-free rate is 7%. Required: Suppose the Mexican stock market is segmented from the rest of the world. Using the CAPM poradigm, estimate the equity cost of capital of Telmex. Note: Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places