Below is an instruction that describes a task. Write a response that appropriately completes the request in French. Please answer in French.

### Instruction:
 Aria has twice as many high school credits as Emily, who has twice the number of high school credits as Spencer. If Emily has 20 credits, what's twice the total number of high school credits the three have?


### Response:
 Si Emily a 20 crédits et Aria en a deux fois plus, alors Aria a 2*20 = 40 crédits d'études secondaires.
Emily a deux fois plus de crédits d'études secondaires que Spencer, ce qui signifie que Spencer a 20/2 = <<20/2=10>>10 crédits d'études secondaires.
Au total, les trois ont 40 + 20 + 10 = <<40+20+10=70>>70 crédits d'études secondaires.
Deux fois le nombre total de crédits d'études secondaires que les trois ont est de 2*70 = <<2*70=140>>140 crédits d'études secondaires.