Item 7 What is the number in scientific notation? Drag the answer into the box to match the number. 855,000,000,000

IF TWO VALUES ARE PROPORTIONAL THEY CAN BE CONNECTED IN TERMS OF k BY MAKING THEM IN A STUCTURE OF AN EQAUTION LIKE GIVEN BELOW. HERE AS THE PROPORTIONAL VALUES ARE RADIUS AND CIRCUMFERENCE WE USE THE GIVEN VALUES AND CREATE EQAUTION LIKE BELOW

r=kC

⇒WE CAN TRASNPOSE THIS TO GET

kC/r=0

⇒C/r=1/k

RECIPROCATE IT TO GET

⇒r/C=k

Maybe this will be correct answer