A certain social media site charges per ad. The price for posting one ad is $500. If four ads are posted, the price per ad is now $430.
What is the percent savings for posting four ads?
Work:

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.