Given:
set-up fee 5,500
variable fee 1 per CD.
Cost per CD is $5.50
5.50 - 1= 4.50
5,500 / 4.50 = 1,222 CDs Choice A.
1*1,222 = 1,222
1,222 + 5,500 = 6,722
6,722/1,222 = 5.50
Use photo math it works great
I hope this helps ( there is no negatives )
20 didn't do it for this one.
8n+25=65
-25
8n=40
n=5 (answer choice a)