What is 2.085 times 10 to the 6th power in standard form

For how answer my question this will be the last question can you answer in math subject

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

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .