Respuesta :

your answer is 11 
for every 140 there is 7 rectangles that means 20 is space 
so 11 * 20 is 220 
hope this help 

your answer is 11 . Because, 140 there is 7 rectangles right now that means 20 is space so 11*20 is 220 so thats why your answer is 11

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