I need somebody to help me find the answer because this stuff makes no sense to me but my teacher don’t know that soo

Answer:
Math notes
Step-by-step explanation:
Here are some of my notes from my class but you can use them to answer your questions and if you need help with a question just tell me!!
It looks like I help to put the link in the chat because it doesn't let my submit it.
Hopes this helps!!