Your portfolio consists of $105$ shares of CSH and $75$ shares of EJH, which you just bought at $$22$ and $$28$ per share, respectively.

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

b$.$ If CSH increases to $$27$ and EJH decreases to $$26,$ what is the return on your portfolio?

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

The fraction invested in CSH is $||.($Round to one decimal place.$)$