A function is when the y value doesn't repeat. the x can repeat infinitely but the y can not to be a function.
The y value is the second number in each set and it doesn't repeat so this IS a function
She can mow 25 lawns.
This is because 40/8 = 5, so multiply 5x5 and you get 25z
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:
B
Step-by-step explanation:
Have a nice day!