Answer:
the answer for the graph and equations would be option D
Answer:
n=23
Step-by-step explanation:
4-23=19
meme
Answer:

-12x = 60
Step-by-step explanation:
This is the type of problem that you just have to do a bunch of times until you get it right -- I don't think there's anything I can tell you that'll help you immediately. Ask for your teacher for more exercises of this sort or look it up online.
Good luck!