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**lovalente** Problem Solving: What do the variables represent; when does cost=revenue.

A high school class is putting together a newsletter. The cost of the design and colour copies is $200 plus 75 cents per copy. The class plans to sell the newsletter for $1.25. The cost and revenue can be represented by the following system of equations.

Cost: C=200+0.75n

Revenue: C=1.25n

Solve the system of equations by substitution.

I know the answer but im not sure how to get to it. Any help is apprectiated.