Consider two investors: Investor-1 (henceforth Inv-1) and Investor-2 (henceforth Inv-2). Risk-free rate for Inv-1 is 5%. Return on risky portfolio is 12%. Inv-1 invests $20,000 in risk-free asset and $30,000 in the risky portfolio. Inv-2 has $40,000 and borrows additional $20,000 at 6%2 and invests the entire $60,000 in risky portfolio.

1. Compute the expected return of Inv-1's portfolio comprising risk-free asset and risky portfolio.
2. Compute the expected return of Inv-2's portfolio comprising risky portfolio only.