Answer:
-4x-13
Step-by-step explanation:
To figure out the sum, you have to add like terms.
This is how it would look like:

Answer:
80 ft
Step-by-step explanation:
Circumference is approximately 250 ft
We want to find the diameter.
Circumference of a circle = π × D (D is the diameter)
So πD ≈ 250 ft
D ≈
≈ 79.57747155
Diameter is approximately 80 ft.
Answer:
The dot is the center
the long line is the diameter
the circle is the circumference
the half way line is the radius