Respuesta :

jessicad6890

Answer:

48

Step-by-step explanation:

1+3=4, 4x3=12, 12+3=15 ,15x3=45 and then it is 45+3=48 bc the sequence is addition and multiplication by 3.
48 because if you find the pattern which is +3 x3 then you can find the answer.

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