Is this enough for daycare?

My 8 month old is EBF and just started daycare. Is 4 - 4oz bottles for 6:30a - 430p enough?

I nurse her at 530 and then she gets a bottle every 2-2.5 hours or should I do 3 - 5oz bottles every 3-3.5 instead?

Basically I send 16oz - bottles have to be pre made due to COVID.

This is all so new to me😔