Question 711840
There are 5 weeknights in a week
( 4 hrs )x( 5 weeknights ) = 20 hrs/wk extra
( $9 / hr )x( 20 hrs ) = $180 extra /wk
Take home = {{{ .7*180 = 126 }}}
{{{ 126 - 100 = 26 }}}
With the car, you will come out $26/wk ahead