help please i dont understand why its wrong

Question 8 0 / 0.2 points Consider the following probability distribution of returns on stock XYZ. What is the expected return of stock XYZ? (Enter your answer as a percentage rounded to 2 decimal places. For example, enter 8.43%, instead of 0.0843) Probability 0.20 0.40 0.40 Return -3% 10% 22% Answer: 0.12 12% Question 9 0/0.2 points Calculate the expected return on a portfolio that contains 30% of a stock with an expected return of 4% and 70% of a stock with an expected return of 8%. (Enter your answer as a percentage rounded to 2 decimal places. For example, enter 1.53% instead of .0153.) Answer: 0.068 6.8%