Use the expected return$-$beta equation from the CAPM.

What is the expected return for a stock if the risk$-$free rate is $2\%,$ beta $1\mathrm{.}3$ and the expected return for the market portfolio is $7\%?$

What is the risk$-$free rate if beta is $1\mathrm{.}1,$ the expected return $7\mathrm{.}35\%$ and the expected return for the market portfolio is $7\%?$

What is beta if the risk$-$free rate is $2\%,$ the expected return $13\%$ and the expected return for the market is $7\%?$

What is the expected return for the market if the risk$-$free rate is $2\%,$ beta $1\mathrm{.}3$ and the expected return $13\%?$