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aleksandr82 [10.1K]
4 years ago
14

I need help [see pic]

Mathematics
1 answer:
umka2103 [35]4 years ago
5 0
I have to assume that someone goes into the store and buys 3 pens for $1.50, 8 for $4 and 12 for $6.  This is a bit confusing until you verify that the unit cost per pen is the same in all three cases.

3 pens for $1.50 comes out to $0.50 per pen;
8 pens for $4 comes out to $0.50 per pen; and 
12 pens for $6 comes out to $0.50 per pen.

Summarizing:  c = ($0.50)p
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