Calculate the expected rate of return for the a portfolio that contains all of the following securities:

Stock A $100,000 with an expected return E(ra) of 7% Stock B $50,000 with an expected return E(rb) of 3% Stock C $100,000 with an expected return E(rc) of 10%

Show each step of the calculation. When you get to the point of calculating the E(r) of the portfolio show the formula in words or symbols AND the formula using the values you come up with AND the final answer.