A predator like that probably won’t starve in a month. Its a bit hard to say, you could compare with a crocodile (larger ones can fast for 2 - 3 years) but they are cold blooded which is a huge metabolic advantage here.
Chances are they probably only ate every 1 to 2 weeks by default. A month is probably not a stretch.
samus12345@sh.itjust.works 1 day ago
If you’re fed, it’s highly likely the T Rex is also fed.