(There is / There are ) one muffin.
There is
(There is / There are) three cupcakes.
There are
(There is / There are) three horses.
There are
Are there two butterflies?
Yes, there are.
(There is / There are) one starfish.
There is
How many flowers are there?
There is one flower.
(There is / There are) four seahorses.
There are
(There is / There are) one moth.
There is
How many sunflowers are there?
There are five sunflowers.
(There is / There are) six cookies.
There are
How many butterflies are there?
There are two butterflies.
Are there ten flowers?
No, there aren't.