please do it in copy and with proper workings

You have $4000 to invest in a portfolio. You would like to combine a risky stock (Apex Footwear) with Risk Free Asset in such a way that the risk level of the portfolio is equivalent to the risk level of the overall market. What amount of the portfolio should be invested in Apex Footwear & Risk Free Asset? State of Economy Expected Return of Apex Market Return Recession -6% 3% Expected 10% 14% Boom 20% 22