texas instruments stock has a beta of $1\mathrm{.}38$ and its expected return is $13\mathrm{.}75\%$ HP$\text{'}$s stock has a beta of $0\mathrm{.}75.$ if the risk$-$free rate is $4\mathrm{.}5\%.$ what is the expected rate of return on HP$\text{'}$s stock?