Stock A has a beta of $1\mathrm{.}47$ and stock $B$ has a beta of $0\mathrm{.}71.$ Assume the risk$-$free rate is $1\mathrm{.}50\%$ and the

market risk premium is $8\mathrm{.}0\%.$

a$.$ What is the expected return on stock A and stock $B?13\mathrm{.}26\%$;$7\mathrm{.}18\%$

b$.$ What would be the beta and expected return of a portfolio in which the investment in stock $A$ is

half as much as the investment in stock B$?0\mathrm{.}96$; $9\mathrm{.}21\%$

c$.$ Find the weights that would yield a portfolio expected return of $11\mathrm{.}0\%.$ What is the beta of this

portfolio? A: $62\mathrm{.}83\%,$ B: $37\mathrm{.}17\%$;$1\mathrm{.}19$

I$\text{'}$m wondering about part b and c specifically, I cant calulate those answers. I put the weights as $0\mathrm{.}5$ for A and $1$ for B and got wrong answers.