Answer:
The student added the discount instead of subtracting the discount.
They also did not calculate the tax correctly.
Step-by-step explanation:
Original price is 499
Discount = original price * percent off
Discount = 499 * .18
        =89.82
The sale price = original price minus the discount
sale price = 499-89.82
sale price = 409.18
Sales tax = sale price * tax rate
        = 409.18 * 8.875%
        =409.18*.08875
         =36.314725
Rounding to the nearest cent
           36.31
Final cost = sale price + sales tax
         =409.18+36.31
          445.49
The student added the discount instead of subtracting the discount.
They also did not calculate the tax correctly.
