Find the circumference of the circle.
Formula: C = π d

Use 3.14 for pi.

C= 56.52

Step-by-step explanation:

If you didn't understand it in mathmatical terms, then here it is in English.

Step 1:

Re-write the formula (Please don't forget to do this step as it is a VERY important step in math)

Step 2:

Once yoou have re-writen the formula, substitute

 In place of write "3.14"

In place of write 18. I got 18 because the diameter is 2r or twice the amount of the radius. So I added 9. So the equation would be

Step 3:

Solve for "C" or Circumfrence

I hope it's clear and understandable. :D

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42