Which expression is an equivalent expression of 12x + 10 + 4y?

Which of the following expressions are equivalent ?

What is the multiple zero and multiplicity of f(x) = (x ? 3)(x ? 3)(x + 5)? multiple zero is 3; multiplicity is 2 multiple zero is 5; multiplicity is 1 multiple zero is ? 5; multiplicity is 1 multiple zero is ? 3; multiplicity is 2

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?