Respuesta :

Answer:

3x+13

Step-by-step explanation:

squares have 4 equal sides

12/4=3x

52/4=13

3x+13

is that 3rd option supposed to be what i put???

hope this helped

plz mark Brainliest so i can rank up!

amyrtil

Answer:

3x+13

Step-by-step explanation:

squares have 4 equal sides

12/4=3x

52/4=13

3x+13

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