Please help me I can’t seem to solve the red outlined questions

SOLUTION
a. From the graph;
[tex]g(8)=2.0[/tex]b.
[tex]g(-4)=-1.0[/tex]c. For how many values of x does g(x) = 0.02, the answer is
[tex]3[/tex]d. For what values is g = 0; the answers are;
[tex]-3,0,3[/tex]