Please assist in answering all questions below

4.2. Study the information provided below and answer the following questions: INFORMATION A retail investor invested R100 000 in an investment portfolio comprising five equity securities. The amounts invested in each of the five assets and the betas of the securities are shown in the table below. REQUIRED: Calculate the beta of the investor's portfolio. (5 marks) 4.3. The market consensus is that Q-Tech Limited has a beta of 1.25 and a dividend growth rate of 6%. The coming year's dividend is R2.12 per share and the consensus estimate of the coming year's market retum is 14%. T-bills currently offer a 6% return. Find the price at which Q-Tech's stock should sell (Hint: use the capital asset pricing model and the Gordon Growth model)