If each square is 2cm long then the perimeter is

primeter=8

Step-by-step explanation:

primeter=4L

=4*2

=8

for each square the perimeter would be length times width. so 2x2 =4

Now if there are multiple squares then the answer would be different. but 4 is the answer for the individual square.

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

14

step-by-step explanation: