# A child care center has 440 feet of fencing to enclose two adjacent rectangular safe play areas. How do you write an expression for the total area A of the play areas in terms of x?

Since you didn't specify what $x$ is, I decided to make it the common play area width (also as pictured below).
If the total play area is $A$ then
$A \left(x\right) = 220 x - \frac{3}{2} {x}^{2}$