solve on paper please

A portfolio is created by investing in three stocks: Stock A, Stock B, and Stock C. The table below provides the following pieces of information for each stock: (1) The volatility of the stock, (2) the proportion of the portfolio's overall value that is attributed to the stock, and (3) The correlation between the stock's return and the return of the portfolio. Calculate the volatility of the portfolio. Stock A Stock B Stock c Volatility 10.20 0.45 0.50 Proportion 0.40 0.35 0.25 Correlation with 0.25 0.75 0.65 Portfolio Return