What are the names of these specific math equations for EACH question???

Hello people, yes I am aware that this is a math question in a health form group thing. And for that I'm sorry...kinda

Anyways!!

I need help identifying what type of equations these are. You see, I am trying study for a college entry exam that I have coming up and I keep taking online test for practice. These are the problems I've been struggling with. Please don't give me any crap about how dumb I am for not knowing these, I missed a lot of high school due to some health problems so I'm learning some of this for the first time😩. Or maybe I knew some of this before idk I just can't remember!

I'm NOT asking for the answers, it already gave me the answers to every question after I completed the practice test.

I'm trying to study them so I can do better by looking up ways to solve equations like this online but have no freaking idea what they are called.

Im just looking for the names of these specific equations for EACH Question so I can look up videos on how to solve problems like that😩😫😩

you would be making this girl really happy