Answer:
⅓y
Step-by-step explanation:

It can help them by concentrating like mind games and teaching them. Learning from their mistakes something like that. Like reading games that help you with your subjects.
Answer:
N = 3
Step-by-step explanation:
I don't know what the whole thing above is, but just disregard that.
All it is here is cross multiplication.
So 28N = 21 * 4
Multiply...
28N = 84
And divide each side by 28
N = 3
Just look it up in the internet i think it will tell you
Answer:1/4
Step-by-step explanation: im sry if im wrong