Answer: The answer is C) 44 units.
Step-by-step explanation:
The question is asking for perimeter, not area. Instead of multiplying 9*13 to get area, we need to add the sides together. If the width on one side is 13, so is the witdh on the other side. This rule applies to the length as well.
9 + 9 + 13 + 13 = 44, so the perimieter of the rectangle is 44 units.