2. The perimeter of a marker board is 48 inches. The
   length of the board is 14 inches. What is the width of the
   board?

To find the width of the marker board, you can use the formula for the perimeter of a rectangle, which is , where is length and is width. Since the perimeter is 48 inches and the length is 14 inches, you can set up the equation: . Simplifying this, you find that , leading to inches.

Now, you’ve got a fun fact: Did you know that the concept of the rectangle’s geometry dates back to the ancient Egyptians? They used simple measurements (like ropes in predetermined lengths) to create fields and layouts, a practical application of geometry that helped them build the pyramids! It just shows how foundational shapes have been in human history!