What is the surface area of this right rectangular prism?
Enter your answer as a mixed number in simplest form by filling in the boxes.
$
ft²
![What is the surface area of this right rectangular prism Enter your answer as a mixed number in simplest form by filling in the boxes ft class=](https://us-static.z-dn.net/files/da7/1fbaea1dacfe47f804fa50e6d8e1ad8b.png)