Translation of "Decides" in Chinese

I want to be the one who decides.

我想成为决策的人。

The coin toss decides who will kick off the match.

裁判抛硬币来决定谁来开球。

One of the great mysteries of life is how a cat decides what to do next.

生活的偉大奧秘其中之一是貓如何決定下一步要做什麼。