A local coffee shop sells coffee for $2.75 per cup and offers a reusable mug for an initial purchase of $8. If a customer buys the reusable mug and then purchases cups of coffee, the total cost, in dollars, can be represented by the equation .
What does the number 8 represent in this equation?
The total number of cups of coffee purchased.
The cost of one cup of coffee.
The initial cost of the reusable mug.
The total cost of all coffee purchased.
