A local office supply store charges $18 to set up their business card printing machine with the design and $0.15 in materials per business card to print. Select all equations that could represent an expression for the average cost A(x) of printing a batch of x business cards.

a


b


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f

A local office supply store charges 18 to set up their business card printing machine with the design and 015 in materials per business card to print Select all class=