Answer:
18 dollars
Explanation:
m = months of game play
130 = (20 + 1m) + (20 + 4m)
130 = 40 + 5m
90 = 5m
18 = m
Hope that helps and have a great day! If ya want me to explain more let me know.
$18
2 software packages + 5 months of gameplay = $130
$40 + 5 months of gameplay = $130
5 months of gameplay = $90
1 month of gameplay = $18
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