B. 1/4(n - 64)
Multiplying n and -64 by 1/4 leaves you with 1/4n - 16, the original equation.
Answer:
A triangle
Step-by-step explanation:
Please mark me as brainliest
<h2>
Hello!</h2>
The answer is: A. 2π
<h2>Why?</h2>
First, in order to make it easier, let's convert the numbers into entire or decimal numbers.

So, ordering it:
C, D, A, B

So, Y=A=6.28
Have a nice day!
<h3>
Answer: 8a + 7b + 2c</h3>
Work Shown:
(11a - 2b + 7c) - (3a - 9b + 5c)
11a - 2b + 7c - 3a + 9b - 5c ... see note below
(11a-3a) + (-2b+9b) + (7c-5c)
8a + 7b + 2c
note: don't forget to distribute the negative through to every term inside the parenthesis