3(2)-18=-12
6-18 = -12
-12 = -12
I think its 180/24 here is my work
so you find the lcm of 
Answer:

Can only be simplified through calculator using decimal equivalents.
Step-by-step explanation:
The perimeter of a rectangle is the formula P=2l+2w. Here
and
. So the perimeter is:

I can not see your ferris wheel and so I can not answer it.