Respuesta :

Answer:

15.5 18 20.5 23

Step-by-step explanation:

The difference between 5.5 and 3 is 2.5 . Similarly the difference between 8 and 5.5 is 2.5. So, the next number after 13 is, (13+2.5) = 15.5.

This way we get the next 4 numbers.

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