Answer:
158 in²
Explanation:
First we can write the equation to find the surface area of a rectangular prism
![A = 2(w*l+h*l+h*w)](https://img.qammunity.org/2022/formulas/mathematics/college/vwuezyeahj0ydv2av44nu9vepil8cdqmxk.png)
Now rewrite filling in variables
![A = 2(3*5+8*5+8*3)](https://img.qammunity.org/2022/formulas/mathematics/college/ya9n8olm7fjsnfl9vb73ecig39gjtme3fv.png)
Solve. Keep in mind the order of operations
After solving, you should get 158.
Since these measurements were done in inches, we need to add inches/in to the end.
Also, since it is area, we need to add ²
158 in²