Your portfolio consists of $125$ shares of $CSH$ and $75$ shares of EJH, which you just bought at $$35$ and $$20$ per share, respectively.

a$.$ What fraction of your portfolio is invested in $CSH?$ In EJH $?$

b$.$ If $CSH$ increases to $$39$ and EJH decreases to $$18,$ what is the return on your portfolio?

a$.$ The fraction of the portfolio invested in $CSH$ is $,\%$ and the fraction of the portfolio invested in EJH is $\%.$

$($Round to one decimal place.$)$

b$.$ The return is $\%.$

$($Round to one decimal place.$)$