Respuesta :
Answer:
once
Explanation:
because if u are playing a game of something including a ball you would have to make sure it doesn't hit the floor twice and if it does you'r out so therefor the answer is once.

Answer:
once
Explanation:
because if u are playing a game of something including a ball you would have to make sure it doesn't hit the floor twice and if it does you'r out so therefor the answer is once.