Respuesta :

musiclover10045

it is increasing scale factor of 3

9/18 *3 = 27/54

27/54 * 3 = 81/162

perixwinkle
1        3         9
-         -          -  
2        6         18
As you can tell, the top and bottom are being multplied by 3, so continue to multiply it by three
27/54 and 81/162

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