To Be Helped, To Be Saved, To Be Rescued
intransitive verb, godan verb
You know that
たすかる
The reading is the same as 助ける, so hopefully you know that word and can apply that knowledge over here.
きっと助かるよ。平気。
I'm sure they'll be fine. It's okay.
家を出たら、目の前にタクシーがいて、助かった。
When I left the house, there was a taxi right in front of my eyes and I was saved.
今回の試験については、どんな答えを聞かれるか、先生が前もって教えてくれたので、とても助かった。
The teacher told us in advance what kind of answers we will be asked for on this test, which was very helpful.