Question

The radius of a circle is (7n-21) inches. How do you find the circumference of the circle in terms of n?

Answer 1

`pi`(14n-42)

Explanation:

To find the circumference of a circle, you use the formula of `C=pi*diameter` or `C=2pi*radius`.

To find the diameter of the circle, you would multiply the radius by 2.
2(7n-21) = 14n-42

Now, multiply by pi: `pi`(14n-42) or an incredibly long decimal that you can look up yourself if you want an exact answer.