Answer:
$15 for one month of game play.
Explanation:
3 software packages times $30 equals $90 total in software packages. Subtract this from the total total of $210 to get $120.
Combined, Angie and Kenny got 8 months of game play.
Divide $120 by 8 to get $15.
It costs $15 to get 1 month of game play.