Answer:
The required expression to the model is 0.85x.
Step-by-step explanation:
Consider the provided information.
15% off the original price of a purchase.
Let the original price of the product is x.
If you are getting an off of 15% that means that you need to pay 100%-15%=85% of the original price.
85% of the original price (x) can be written as:
Thus, the required expression to the model is 0.85x