Hello everyone, im new to the forums and have finally decided to join a math forum since I feel it will help me better understand math and also give me help with certain problems I have trouble with. So I wanted to see if I could get a little help with this equation since im bad with numbers

Equation: A string 32 inches long has been cut into 4 pieces to form a rectangle whose shortest side is X.

1.) Express the area A(x), of the rectangle as a function of X.

2.) Determine the domain of A(x).

3.) Approximate the maximun area of the rectangle and state the dimensions of the rectangle.

This is the problem I am having alot of trouble with as I have no Idea where to even start. Any help anyone could bring to this equation for me would be greatly appreciated, and thnx