
Grade 11Algebra
if n(u)=100 n(a)-60 n(b)=48 n(a intersection b)=22, n(a intersection c)=30 where c contained in a. Find n(a union b)
if n(u)=100 n(a)-60 n(b)=48 n(a intersection b)=22, n(a intersection c)=30 where c contained in a. Find n(a union b)



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