Find a ∩ (b ∪ c ). a = {2, 3, 5, 8} b = {3, 5, 7} c = {2, 4, 8}

Write an equation of a line in slope intercept form that is perpendicular to the line 2x -3y = 12 and passes through the point (2, 6).

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Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.