How do you graph these types of inequalities?

Arandom high school question but a hard one

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle