my baby entered 5 month but still not able to hold the head or rolling over the tummy yet.when will the baby start roll on the tummy

A. The child will have a total stability and head control of the head by completing the time of six months rollovers can be seen between three months to 9 months of age so you should give more of tummy time to encourage and the food can be started after completing the time of six months and that is when you can make your child sit with support