Use the given information to fill in the number of elements in each region of the Venn diagram. n(A) = 57, n(A ∩ B) = 37, n(A ∪ B) = 82, n(A ∩ B ∩ C) = 16, n(A ∩ C) = 21, n(B ∩ C) = 27, n(C) = 49, n(B′) = 49.