Respuesta :

Emmapalrima
Boys to girls 4:5
boys to total: 4:9 (4+5=9)
                      ?:81 
well 9*9 equals 81 so 4*9=36
36
jhsminaj

4:5

4:9 is boys to total amount

9 x 9= 81

4 x 9 = 36

36 is the answer

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