someone please help me im only in middle school please we just straight up jumped into this existance is pain and pain is existance oh my god​

Which of these tables represents a non-linear function?

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible

Answer asap evaluate 4-0.25g+0.5h4−0.25g+0.5h when g=10g=10 and h=5h=5.