# The sale price on a TV is 30% off the regular price. If the regular price is $420, how much will you save and what is the ﬁnal cost after 8% sales tax?

##### 1 Answer

Nov 6, 2015

You will save $126

The final price will be $317.52

#### Explanation:

To solve this problem first we need to take the numbers out of the word problem

So we have base price:

Discount:

Tax:

We then simplify all the percents into actual dollar values (I'm assuming you know

So our new price is

Next we find the tax

So our new price is

This is our final price

The formula for this is

In this case