How do you do this ? it’s inequalities.

(if f(x)=4x^2 and g(x)=x+1, find (f o g)(x)

The variable in a relation who’s value depends on the value of the independent variable is called what?

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.