Which expressions are polynomials?

select each correct answer.

6 + w

2x4−y

z + 1

y2−y√3+4

20 ! need ! which exponential function is represented by the table? f(x) = 0.2(0.5x)f(x) = 0.5(5x)f(x) = 0.5(0.2x)f(x) = 0.2(0.2x)