Question

As a member of the Games Shop rewards program, you get a 20% discount on purchases. All sales are subject to a 6% sales tax. Write functions to model the discount and the sales tax, then identify the rule for the composition function that calculates the final price you would pay at Games Shop.

A) Final Price = Discount - Sales Tax
B) Final Price = Discount + Sales Tax
C) Final Price = Original Price - Discount + Sales Tax
D) Final Price = Original Price - Discount - Sales Tax

Answer 1

The rule for the composition function that calculates the final price you would pay at Games Shop is Final Price = Original Price - Discount + Sales Tax.

Step-by-step explanation:

The rule for the composition function that calculates the final price you would pay at Games Shop is:

Final Price = Original Price - Discount + Sales Tax

First, you calculate the discount by multiplying the original price by 20% (0.2). Then, you calculate the sales tax by multiplying the discounted price by 6% (0.06). Finally, you subtract the discount from the original price and add the sales tax to get the final price you would pay at Games Shop.