Suppose Autodesk stock has a beta of 2.16?, whereas Costco stock has a beta of 0.69. If the? risk-free interest rate is 6.5% and the expected return of the market portfolio is 12.0%?, what is the expected return of a portfolio that consists of 55% Autodesk stock and 45% Costco? stock, according to the? CAPM? The expected return is ____?%. ? (Round to two decimal? places.)