Question

A printing service charges a set-up fee of $12.75 for each order and 5 cents more for each copy. The total cost , c (in dollars), for an order of x copies is given by the following.
c=0.05x+12.75
What is the total cost for an order of 30 copies?

Answers

GPT 3.5
To find the total cost for an order of 30 copies, we substitute x=30 into the equation:

c = 0.05(30) + 12.75
c = 1.5 + 12.75
c = 14.25 + 12.75
c = 27

Therefore, the total cost for an order of 30 copies is $27. Answer: \boxed{27}.