Question

Liz wants to buy her favorite musical group's new CD. The CD costs $15.24, including tax. Liz gives the store clerk a twenty-dollar bill. How much change should Liz get back?

Answer 1

See below

Explanation:

First you need to get all your information out.
It says that a CD pack costs `**$15.24**`

And Liz has `**$20**`
So you need to know that the question is asking for substracting because it says how much change will she get?

When you deal with money you need to know that there are `100` units in `$1` .

Therefore you need to get your `$20` note and your `15.24` and substract the price of the CD from your `$20`

`$20-$15.24`
`=$4.76`

If you don't know how to substract decimals you can easily turn `$20` into `2000` and `$15.24` into `1524`
which will give you the same anwer but you have to move 2decimal places:

`2000-1524=476`
2decimal places will be `**4.__|7|6**`

I hope this will help you for future!