Answer:
120poles
Step-by-step explanation:
Given
Length of each poles of the paddock = 30
Since a square has 4 sides, the perimeter of the square shaped paddock is what we are to look for.
Perimeter of a square = 4L
L is the length of each side of the paddock
Perimeter = 4(30)
Perimeter of the square = 120
Hence he used 120poles for the paddock
To find out the last operation, we must solve the entire problem.
We are given:

Let's simplify the signs so they don't clutter our equation.

We always need to be sure to use PEMDAS. Since there is no expression to solve in parenthesis and no exponents are present, we will move on to multiplication. We can multiply -9 and -6 in the denominator. When we do that, we get:

Next, all you need to do is combine like terms in the numerator and the denominator.

Simplify.

To answer the question, the last operation to be performed when finding the value would be division.
Answer: it’s B because you see the way the arrow is pointing and if it has a line under it it is a closed cirlcle
Divide 40 by 8 minutes to find the quantity per minute for one machine:
40 / 8 = 5 per minute.
One machine does 5 envelopes per minute.
Now divide 120 by 5 to find the number of machines needed:
120 / 5 = 24
24 machines would be needed.
Step-by-step explanation:
option C . they are borrowing your money and rewarding you for keeping money with them