Question

Find A ∩ B A = {2, 3, 4, 5, 6} B = {3, 6, 9, 12, 15}

Answer 1

$\bf A = \{2, \boxed{3}, 4, 5, \boxed{6}\} \qquad B = \{\boxed{3}, \boxed{6}, 9, 12, 15\} \\ \quad \\ A\cap B\impliedby \textit{values that intersect or are common to both}$

Answer 2

It's asking common members so the answer must be {3,6}