The cost, including sales tax, of a shirt is $16.05. If the sales tax is 7%, find the price of the shirt
Before the tax was added.
A)$16
B)$14
C)$15
D)$17

Question

Quizplus · Accepted Answer

Let the price before tax be x.
7% of x is 0.07x (the tax)
The total cost is therefore x + 0.07x = 1.07x.
We know that the total cost, including tax, is $16.05
So, 1.07x = 16.05
x = 15
Therefore, the price of the shirt before tax was $15, option C.

The Cost, Including Sales Tax, of a Shirt Is $16