Find the inequality represented by the graph

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28

Identify the number as a rational or irrational.explain. 127