a+b+c = 22
(a+b+c+d)/8 =(22 +d)/4 = 8
22 + d = 32
d = 10
Alay K.
asked 02/28/19a+b+c = 22
(a+b+c+d)/8 =(22 +d)/4 = 8
22 + d = 32
d = 10
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