By definition, the number
is the ratio between the circumference and the diameter:

This implies that

And so your circumference is 
Answer:
8*5^n-1 / 2^n-1 = n
This is the function for your sequence
Answer:
66.04
Step-by-step explanation:
26 x 2.54 =
= 66.04
Answer:

Step-by-step explanation:
First, you make fourteen a fraction.

Then, make it a mixed fraction by adding a six.

Lastly, have a great day! :)