Respuesta :

738004

Answer:

It’s 7

Step-by-step explanation:

Because

y= 40 + 7x

How did I find this?
well i noticed that there was a difference of 7 between 47 and 54, and between 54 and 61.
Then i did 47-7 to find the starting value, which was 40, and i plugged it into the equation. Input is x, output is y

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