Can anyone help me on this pls? <3

Answer:
EasY
Step-by-step explanation:
Okay so basically like terms are when the variable are the same
so like 5n can go with ones with the same variable which is n
so 5n as a like term would be 7n it couldn't be like 8r because it isn't the same variable as 5n
does this help?
can you reask or something?? do i answer all the q 11 stuff?? im not sure how the logic works, and it is covering the other stuff, ill answer there, i have the image in my tab