The answer would be A.) 0.8 !! Goodluck
I think it’s questions 1 and 2
Step-by-step explanation:

Answer:
...
Step-by-step explanation:
15) n - 13
16) 3n
17) 12x - 9
18) -k
19) -20n
20) -4n
21) 3 - 21m
22) 16n + 18
Answer:
yes it does
Step-by-step explanation:
as you can see,
in a function, we don't have more than one y for a x, so here we have one y for each x. then it is