Can someone help me on this real quick? and Happy Holidays!

Which of the following graphs could represent a cubic function?

Simplify the given expression leaving the answer in improper fraction form. 2/3+5/6

1) your friend taylor missed class today and needs some identifying solutions of systems. explain to taylor where to find the solution(s) of any system using its graph 2)taylor graphs the following in desmos and decides that f(x) = g(x) at x = 0, x = 1, & x = 3. f(x) = 2x+1g(x) = 2x2+1 provide taylor some feedback that explains which part of the answer was incorrect and why.