toni5000 toni5000
  • 26-06-2020
  • Mathematics
contestada

What is the value of a in the equation , when ? 3 15 21 39

Respuesta :

alexandergibson80
alexandergibson80 alexandergibson80
  • 01-07-2020

Answer:

the mean =19.5

Step-by-step explanation:

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