Final answer:
The cost to print fliers for the opening of an art show varies directly with the number of copies. The total cost for 120 more copies would be $52.20.
Step-by-step explanation:
In this scenario, the cost of printing fliers varies directly with the number of copies. We can use the formula: Cost = k * Number of Copies, where k is a constant.
Given that it cost $45 to print 750 copies, we can plug in these values into the equation to solve for k: 45 = k * 750. Solving for k, we find that k = 45/750 = 0.06.
To find the total cost for 120 more copies, we can plug in the new number of copies into the equation: Total Cost = 0.06 * (750 + 120). Simplifying this expression, we get Total Cost = 0.06 * 870 = $52.20.