She burnt 2 dozen, cooked 2 dozen and then another 2 dozen that evening. So she made 2+2+2 =<<2+2+2=6>>6 dozen cupcakes
Each dozen makes 12 cupcakes, so she made 6*12= <<6*12=72>>72 cupcakes
She threw away 2 dozen cupcakes, so 2*12 = <<2*12=24>>24 cupcakes
She made 72, threw away 24, ate 5 and then ate another 4 so she had 72-24-5-4 = <<72-24-5-4=39>>39 cupcakes left
She sells the 39 cupcakes at $2.00 each so she earned 39*2 = $<<39*2=78.00>>78.00
She made 72 cupcakes at a cost of $0.75 each for a total cost of 72*$0.75 = $<<72*0.75=54.00>>54.00
If she made $78 on the remaining cupcakes and it cost her $54.00 to make all of the cupcakes then her profit is $78-$54 = $<<78-54=24.00>>24.00
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