180= 90+30+x? what is the value of x? make sure you give good reasoning

Abag has more green balls than blue balls, and there is at least one blue ball. let bb represent the number of blue balls and let gg represent the number of green balls. let's compare the expressions 2b2b and b + gb+g. which statement is correct? choose 1

Which is the scale factor proportion for the enlargement shown?

Find the volume of the solid bounded by the plane z=0 and the paraboloid z=1-x^2 –y^2