Answer :
Total money spent
= $318.70 + $21.98
= $340.68
Total money earned
= 40 x $12
= $480
Profit
= $480 - $340.68
= $139.32
= $318.70 + $21.98
= $340.68
Total money earned
= 40 x $12
= $480
Profit
= $480 - $340.68
= $139.32