Respuesta :
Answer:
Zachary must be older than dayla so Zachary should be about 5-6 years and dayla 2-3 years
Answer:
Zachary should be 4-6 years old and Dayla should be 1-2
Explanation: 1-2 years is when children usually develop to walk. If Zachary was older than 6 he would know that since his sister is very young she most likely doesn't know how to throw yet.