Ответ:
21
AVERAGE(A2:D2)=SUM(A2:D2)/4
SUM(A2:D2)=3*4=12
SUM(A2:E2)=SUM(A2:D2)+E2=12+9=21
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Ответ:
21
AVERAGE(A2:D2)=SUM(A2:D2)/4
SUM(A2:D2)=3*4=12
SUM(A2:E2)=SUM(A2:D2)+E2=12+9=21