She needs 6 appetizers per each of her 30 guests so she needs 6*30 = <<6*30=180>>180 appetizers
She’s made 3 dozen deviled eggs, 2 dozen pigs in a blanket and 2 dozen kebabs so she’s made 3+2+2 = <<3+2+2=7>>7 dozen appetizers
7 dozen appetizers is 7*12 = <<7*12=84>>84 appetizers
She needs 180 appetizers and has made 84 so she needs 180-84 = <<180-84=96>>96 appetizers
96 appetizers, in dozens, is 96/12 = <<96/12=8>>8 dozen more appetizers
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