Answer:
3/20 I think
Step-by-step explanation:
Answer:
x = 7
Step-by-step explanation:

20\2=10
10\2=5
5\2=2.5
2.5\2=1.25
Start by laying out the 12.
The neighbors of 12 must be 11 and 10.
The neighbor of 11 must be 9, and the neighbor of 10 must be 8, and so on and so forth, until you get a unique arrangement.
Answer:
-4a/-8 +-12a
Step-by-step explanation:
I'm assuming its just asking you to put it down and now solve it so, I plugged in the top to the bottom, and multiplied it all; getting ^, if its asking for a more simplified answer it would be a/2 + 12a ... I think