i need 16 to answer 15 please and also 18

Question 18 1.25 pts Assume that the risk free interest rate is 3%, the market rate of return is 7% and beta for company X is 2. Given this information, the non-diversifiable risk for this company is 4% 2 8% 6% Question 15 1.25 pts Referring to question 16, the portfolio's return is 37% 34% 40% 30% Question 16 1.25 pts If the correlation between two variables is (-1), then the two variables are said to be Perfectly negatively correlated Positively correlated Perfectly positively correlated Negatively correlated Question 18 1.25 pts Assume that the risk free interest rate is 3%, the market rate of return is 7% and beta for company X is 2. Given this information, the non-diversifiable risk for this company is 4% 2 8% 6% Question 15 1.25 pts Referring to question 16, the portfolio's return is 37% 34% 40% 30% Question 16 1.25 pts If the correlation between two variables is (-1), then the two variables are said to be Perfectly negatively correlated Positively correlated Perfectly positively correlated Negatively correlated