You own a portfolio that is 35 percent invested in Stock x, 20 percent in stock y, and 45 percent in stock z. The expected returns on these stocks 9 percent, 17 percent, and 13 percent respectively. What is the expected return on the porfolio?

weight of x - 35%

weight of y- 20%

weight of z- 45%

stock x E (R)- 9%

stock y E (R) - 17%

stock z E (R) - 13%

I need to solve this by typing formula into excel, not just typing in answer.