What is the circumstance of 12cm ?

37.68 cm

Step-by-step explanation:

The formula for circumference is C= 2* (3.14) r

First you can actually cut 12 by 1/2

12 * 1/2  is 6.  This works because 12 is an even number.

2 * 3.14 (6) gives you 37.68 cm.

So i believe the answer is 37.68 cm.

n = 20

Step-by-step explanation:

Step 1:-

Joe and Kyle share an amount of money In the ratio 7:n and also

Joe get 35% of the money.

Therefore 7:n =  35%

cross multiplication we get

n =20