Use set-builder notation to write the following set. {3, 6, 9} {x | x is a multiple of 2 and 3 < x < 9} {x | x is a multiple of 3 and 3 < x < 9} {x | x is a multiple of 2 and 2 < x < 10} {x | x is a multiple of 3 and 2 < x < 10}