Suppose Intel stock has a beta of $0\mathrm{.}88,$ whereas Boeing stock has a beta of $1\mathrm{.}3.$ If the$$ risk$-$free interest rate is $3\mathrm{.}4\%$ and the expected return of the market portfolio is $10\mathrm{.}7\%,$ according to the$$ CAPM,

a$.$ What is the expected return of Intel$$ stock?

b$.$ What is the expected return of Boeing$$ stock?

c$.$ What is the beta of a portfolio that consists of $70\%$ Intel stock and $30\%$ Boeing$$ stock?

d$.$ What is the expected return of a portfolio that consists of $70\%$ Intel stock and $30\%$ Boeing$$ stock? $($There are two ways to solve$$ this.$)$