--19 - 3x = -2 - 3 (x + 4) = Can someone plsss help me with this problem?

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?

Hurry im being timed the graph of f(x)=x^3-3x^2+4 is shown based on the graph how many distinct real numbers solutions does the equation x^3-3x^2+4=0 have