How many pizzas do you order for 16 adults and 18 kids?

If adults eat two slices that’s 4 pies just for them. If kids eat 1 slice that’s 3 more. Should I just get 8? Is that too many? We’re talking New York style, foldable slices.

We got 36 cupcakes for 34 people.

And a case of water (24 bottles) and how ever many packs of juice boxes for each kid to have 1 (or two?)

The party is at an aquarium from 1pm-3pm so food is not the main event but I also don’t want people to leave hungry.

Thoughts?