Respuesta :

Ok well what I did but I’m not sure if it answers your question but I did 27-15=12-7=5 and that what I got maybe it’s 5 it’s just an assumption

la sucesion o razon es:

x3+9/2

así:

7x3+9/2 =  21+9/2 =  30/2 = 15

15x3+9/2  = 45+9/2  = 54/2 = 27

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