I’ve sent all the documents, so now the ball is in your court. (What does "the ball is in your court" mean?)
It is your turn to decide or act
If you think I broke your phone, you’re barking up the wrong tree. (What does "barking up the wrong tree" mean?)
You are accusing the wrong person
The English test was a piece of cake for Lisa. (What does "a piece of cake" mean?)
Very easy