が決まる

is decided; is settled

→ が
phrase Rare #20,981
is decided; is settled The particle が marks what is being decided or settled. Often used for plans, roles, selections, and arrangements.
JA: 来週、旅行の日程が決まる。
EN: The travel dates will be decided next week.

仕事が決まるといいね。

I hope you find a job.

方法が決まるまで待て。

Wait until the method has been decided.

— 預言者 (2009)

今日はあいつの就職が決まる日だ

Today is the day he finds out whether he got the job.

— きっと、うまくいく (2009)

それで私の稼いだ金で私の社会の中でいるべき場所が決まる

And so, the money I earn determines my place in society.

— Article 15 (2019)