Answer:
3
Step-by-step explanation:
First set up your data in order
0,0,0,0,1,1,1,2,2,2,2,3,3
Second subtract the lowest to the highest which is 3-0=3
Hope this helps!
Answer: y = 31 and x = 13
Step-by-step explanation: Look at the image from the top left to top right, then to bottom right to bottom left.