Circumference = 2πr
r = 9
Circumference = 2π(9)
Circumference = 18π
Circumference = 18(3.14)
Circumference = 56.52
Distance: 56.52 meters
Answer:
Answer is below
Step-by-step explanation:
I graphed all of the expressions on the graph below to find the solutions of the expressions.
If these answers are correct, please make me Brainliest!

First, distribute 3 into the parenthesis(multiply it to every term inside):

Add 21 to both sides:

Subtract 15m to both sides:

Divide -11 to both sides:

To check our work we can plug this back into the original equation for 'm':


Multiply:

Distribute 3 into the parenthesis:

Subtract:

Both sides are equal to each other, so we solved it correctly.
48 is the perimeter, all sides in a square are equal, you take 12 * 4 which gives you 48.
For the area, you take two sides, length and width, and you multiply them, 12 * 12, this gives you 144.