which of the following questions would an adolescent who has not reached piaget's stage of formal operations have trouble thinking about?responseswhat if you had been born to different parents?what if you had been born to different parents?how many 2 inch pieces can a 10 inch rope be cut into?how many 2 inch pieces can a 10 inch rope be cut into?what date did columbus arrive in america?what date did columbus arrive in america?what is the definition of isolation?what is the definition of isolation?where is the source of the nile?