An Investors portfolio consists of the following stocks

Stock	Percentage of portfolio	Beta	Expected Return
1	30	0.95	21%
2	20	1.20	25%
3	5	1.50	30%
4	15	0.80	15%
5	18	1.60	10%
6	12	1.90	20%

The current risk-free rate of return is 8.7% and the expected return on the market portfolio is 18%

Compute the

Expected return on the portfolio

Portfolio Beta

Required rate of return for Stock 1 and 4