We can find the surface area of the rectangular prism by adding up the areas of all six faces. The rectangular prism has three pairs of identical faces, each with an area of length x width. Therefore, the surface area is:
Surface area = 2lw + 2lh + 2wh
Substituting the given values, we get:
Surface area = 2(9)(3) + 2(9)(5) + 2(3)(5) = 54 + 90 + 30 = 174 square inches
Therefore, the surface area of the rectangular prism represented by the net is 174 square inches.