I need a clearer understanding of how to solve: It takes 1 hour for refrigerated dough to come to room temperature.  It takes 15 minutes to shape the dough and 2 hours to proof.  The bread takes 30 minutes to bake and 15 minutes to cool.  If the bakery opens at 6:00 am, what is the latest time the head baker can make it to the store to start working?