You are considering investing $1,000 in a complete portfolio. the complete portfolio is composed of treasury bills that pay 5% and a risky portfolio, p, constructed with two risky securities, x and y. the optimal weights of x and y in p are 60% and 40% respectively. x has an expected rate of return of 14%, and y has an expected rate of return of 10%. to form a complete portfolio with an expected rate of return of 8%, you should invest approximately in the risky portfolio. this will mean you will also invest approximately and of your complete portfolio in security x and y, respectively