The table top is 12 ft²
Explanations:The table top is rectangular in shape
[tex]\begin{gathered} \text{Length of the tabletop = 3}\frac{6}{7}\text{ Ft = }\frac{27}{7}\text{ Ft} \\ \text{Width of the tabletop }=\text{ 3}\frac{1}{9}\text{ Ft = }\frac{28}{9}\text{ Ft} \end{gathered}[/tex]The square feet of the tabletop will be known by calculating the area
Area of a rectangle = Length x Width
[tex]\begin{gathered} \text{Area = }\frac{27}{7}\times\frac{28}{9} \\ \text{Area = 3 }\times\text{ 4} \\ \text{Area = 12 Ft}^2 \end{gathered}[/tex]