I don't know how to find the answer for (3 + 6b + 3b^2). I'm still confused even after my teacher explained it. Could someone break it down for me?

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?

Acomposition of transformations maps δxyz to δx"y"z". the first transformation for this composition is , and the second transformation is a 90° rotation about point x'.