To find the surface area of the rectangular prism, we need to find the area of each face and sum them up.
The formula for the surface area of a rectangular prism is 2lw + 2lh + 2wh, where l is the length, w is the width, and h is the height.
From the image, we can see that the measurements are 3 inches, 4 inches, and 9 inches.
Plugging the values into the formula:
2(3)(4) + 2(3)(9) + 2(4)(9)
= 24 + 54 + 72
= 150 in.2
Therefore, the surface area of the rectangular prism is 150 in.2.