What is the area of a square , in square feet , whose perimeter is 40 feet ?

100 feet^2.

Step-by-step explanation:

What you do is based off the formula for the perimeter of a square which is 4a.

You will take the 40 and divide it by 4 to get 10.

Then you will take the formula for the area of a square which is a^2.

So you take 10 and square it to get 100.

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.