Help me please! give explanation if possible so I can understand Tysm!

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

If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer

Isaac wants the equation below to have no solution when the missing number is placed in the box. which number should he place in the box?