Answer:
A) 12x-4y
Step-by-step explanation:
Since a square has a perimeter of P=4s, then P=4(3x-y)=12x-4y, therefore A is the correct option.
A, C, and F are functions.
The statement will be m∠ABC = m∠GHI.
Reason: ∠ABC ≅ ∠GHI