# A CD usually sells for $18.00. If the cD is 10% off, and sales tax is 8%, what is the total price of the CD, including tax?

##### 1 Answer

#### Answer:

The total price is $17.50 rounded to the nearest penny.

#### Explanation:

To find the total price we can use the following formula:

Where:

First, let's calculate the amount of the discount.

"Percent" or "%" means "out of 100" or "per 100", Therefore 10% can be written as

When dealing with percents the word "of" means "times" or "to multiply".

Putting this altogether we can write this equation and solve for

We now have all the values to substitute into the equation for the total price: