It seems you can fill in the table with the equation y = 3 * x
x = 1 then y = 3
x = 3 then y = 9
Yes this is using the transitive property
Point A leads to point B, B goes to C, so overall A goes to C. Think of it connecting a chain.
Nice job on getting the correct answer.
The answer is 15 feet 7 inches :)