Y=2/(x+1)
x=2/(y+1)
y-1=2/x
y=(2/x)+1
7 is 8.16
8 is 1516
9 is 19.625
10 is 18.84
and bonus is zero
You purchase 4 videos
The original price of each video is x dollars
You decide to purchase the limited edition versions of the videos for an additional cost
Your total cost is (4x + 20) dollars
So, total additional cost is $20
since, we are purchasing 4 videos
so, additional cost in each videos is
![=\frac{20}{4}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B20%7D%7B4%7D)
![=5](https://tex.z-dn.net/?f=%3D5)
So, limited edition cost additional $5 per videos.........Answer