Question

when did Peggy and Maddie noticed Wanda Absence ​

Answer 1

Peggy and Maddie noticed Wanda's absence because they had a habit of teasing her before the school front gate. When she was absent they had no one to ask about dresses. Hence it other words they were bored as their was no one to mess with.

Answer 2

Peggy and Maddie notice wanda absence on 3rd day when they wait for her to ask questions about hundred dresses