The area of a parallelogram is given by
[tex]\text{Area = length x width}[/tex]
Given parameters
Area = 504 square centimeters
width = 18 cm
length = y
Method: Substitute the given values into the formula
[tex]\begin{gathered} 504\text{ = }y\text{ x 18} \\ \\ 504\text{ =18y} \end{gathered}[/tex]
Hence 18y = 504
divide both sides by 18
[tex]\begin{gathered} y\text{ =}\frac{504}{18} \\ \\ y=18\text{ cm} \end{gathered}[/tex]
Hence, answer: y = 18 cm
