YOU SAID:
How many pizza slices are there?
INTO JAPANESE
ピザのスライスはいくつありますか。
BACK INTO ENGLISH
How many slices of pizza do you have?
INTO JAPANESE
ピザは何枚ありますか。
BACK INTO ENGLISH
How many pizzas do you have?
INTO JAPANESE
いくつのピザがありますか。
BACK INTO ENGLISH
How many pizzas do you have?
Okay, I get it, you like Translation Party.