Can I please get some help on these two questions?

Question 8 (1 point) Saved The market expected return is 10% and volatility is 20%. The risk free-rate is 3%. What is optimal expected return of a portfolio that targets 30% volatility? 12% 13% 14% Not possible to determine Question 9 (1 point) Rock Bank has capital of $10 Billion. Rock borrows $60 Billion risk-free at 3% and invests with expected return of 4%. What is the bank's expected capital in 1 year? Impossible to know $10 Billion $11 Billion $12 Billion