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Help the nervous party host check the supplies before the guests arrive.
"Oh no! _________________________ enough cake for everyone? And _________________________ enough chairs in the living room for people to sit down? Wait, _________________________ only two pizzas on the table! We definitely need to order more food."
Is there enough cake...
We use "Is there" to ask a question about an uncountable noun (cake).
are there enough chairs...
We use "are there" to ask a question about plural countable nouns (chairs).
there are only two pizzas...
We use "there are" to make a statement about plural countable nouns (two pizzas). Notice this is a statement, not a question, so the word order is subject-verb.