Provide a step by step solution for the following math problem: Mother made 2 dozen brownies and placed them on the kitchen counter to cool.  Father smelled the brownies, came into the kitchen and ate 8 of them. Then, their daughter, Mooney, wandered into the kitchen and ate 4 of the brownies. The next morning, Mother made another two dozen brownies and added them to those remaining from the day before.  After that, how many brownies were on the counter?