Question

The regular price of an item at a store is p dollars. The item is on sale for 25% off the regular price. Which expressions correctly represent the final sale price for this item.

Answer 1

B) Expression X and Expression Y

Step-by-step explanation

First we have to find the 25% of p:

`(25)/(100)* p=0.25p`

The sale price is the regular price p minus the discount - which is the 25%:

`p-0.25p`

This is expression Y.

Then, we can simplify that expression by adding - or in this case, subtracting - the terms, because both have p:

`p-0.25p=(1-0.25)p=0.75p`

And we got expression X.