The mode for this set of numbers is 18 because there are three 18's in the set of number, and only two 20's. :D
G(1) = 2(1) + 4 = 6
g(1) = 6
17. 2x<16 x=7 or lower
All I can help you with is #17,
sorry that I can't answer the other 3.
I hope this helped! :-)
