Respuesta :

ThatweirdBIgirl101

Answer:

10 i think

Step-by-step explanation:

because 20+10+10=40

sushilakadel2018

Answer:

70

Step-by-step explanation:

Let the claire pointa be x then

Mean = Sameson X / N

40= 20+30+x/3

40×3=50+x

120-50=x

Therefore x=70

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