Portfolio risk and return

Elle holds a $$5,000$ portfolio that consists of four stocks. Her investment in each stock, as well as each stock's beta, is listed in the following table:

Suppose all stocks in Elle's portfolio were equally weighted. Which of these stocks would contribute the least market risk to the portfolio?

Flitcom Corp.

Three Waters Co$.$

Zaxatti Enterprises

Andalusian Limited

Suppose all stocks in the portfolio were equally weighted. Which of these stocks would have the least amount of stand$-$alone risk?

Andalusian Limited

Flitcom Corp.

Three Waters Co$.$

Zaxatti Enterprises

If the risk$-$free rate is $7\%$ and the market risk premium is $8\mathrm{.}5\%,$ what is Elle's portfolio's beta and required return? Fill in the following table: