Cost of equity: SML$.$ Stan is expanding his business and will sell common stock for the needed funds. If the current risk$-$free rate is $5\mathrm{.}3\%$ and the expected market return is $12\mathrm{.}4\%,$ what

is the cost of equity for Stan if the beta of the stock is

a$.0\mathrm{.}57?$

b$.0\mathrm{.}89?$

c$.1\mathrm{.}04?$

d$.1\mathrm{.}44?$

$\%($Round to two decimal$$ places.$)$