The answer is C.
Use the slope formula:
m=y2-y1/x2-x1
m= -5-1/0-3
m = -6/-3
m = 2
The surface area of the box will be 112 in²
Explanation
According to the given diagram, the shape of the box is Right Rectangular prism.
The formula for the surface area is :
, where
length,
width and
height of the rectangular prism
Given in the diagram that, 
So, plugging the values into the formula...

So, the surface area of the box is 112 in²
Answer:
E=8h
Step-by-step explanation:
6,4 and or 8,7 should be the answer