Respuesta :

three rows of threes 

Answer: There will be 3 rows with 3 photos.

Step-by-step explanation:

Since we have given that

Number of photos to be arranged by Amir on a bulletin board = 9

According to question, we have given that each row contains the same number of photos.

Let the number of rows be x

So, the number of photos also be x

So, our equation becomes

[tex]x^2=9\\\\x=\sqrt{9}\\\\x=3[/tex]

So, there will be 3 rows with 3 photos.