Flooring City is running a limited time special on carpeting. The cost to have your home carpeted is $100 per room and a $50 flat fee for installation.

Part III: Using your equation from Part I, determine how much it would cost to have 4 rooms carpeted by Flooring City. Show ALL your work.

Let's use the equation from Part I to calculate the cost of carpeting 4 rooms:

Cost = (Cost per room * Number of rooms) + Installation fee

Cost = ($100 * 4) + $50
Cost = $400 + $50
Cost = $450

Therefore, it would cost $450 to have 4 rooms carpeted by Flooring City.